Option A has the grammatically incorrect part. The error is in the use of the auxiliary verb "has".

• For the plural subject "recommendations", we need a plural auxiliary verb (because of the "subject-verb agreement rule").
  
  
• Thus, replace "has" with "have" to make the sentence grammatically sound.

Option C has the grammatically incorrect part. The error is in the use of the possessive pronoun "your".

• In the above sentence, we do not need the dependent possessive pronoun "your".
  
  
• Thus, replace it with "you are" to make the sentence grammatically sound.

Option B has the grammatically incorrect part. The error is in the use of 'what' in the above sentence. 

• "WHAT" is used for asking for information about somebody/something.
  
  e.g. What kind of music do you like?
  
  OR
  
  for the thing or things that
  
  e.g. What you need is a vacation.
  
  
• Here, the person is talking about a place (they reside...). 
  
  
• Thus, we will use 'where' in place of 'what' in the above sentence. 
  
  WHERE is used to show at, in, or to which place.
  
  e.g. the town where she lives

 The error is in the segment 'need to limiting your thinking' and it is because of the verbs.

We use base form of the verb after 'to'.

For example, I set out to buy food.

Hence, 'limiting' should be replaced with 'limit' to make the sentence grammatically correct.

Therefore, option B is the correct answer.

The error is in the segment 'a parts of' and it is because of the incorrect use of nouns.

We use singular nouns after indefinite articles a/an.

For example, please hand me a book; any book will do.

Hence, 'parts' should be replaced with 'part' to make the sentence grammatically correct.

Therefore, option D is the correct answer.

The error is in the segment 'for his readers refreshes' and it is related to prepositions.

The preposition 'from' is used to indicate a source of knowledge or the basis for one's judgement.

For example, information is obtained from papers, books, and presentations.

An author would get response from his readers.

Hence, 'for' should be replaced with 'from' to make the sentence grammatically correct.

Therefore, option C is the correct answer.

The error is in the segment 'that need urgent attention' and is related to subject-verb agreement.

The subject, child labour, in the sentence is singular. Hence, the verb must also be singular to maintain the subject-verb agreement.

Therefore, 'need' should be replaced with 'needs' to make the sentence grammatically correct.

Hence, option D is the correct answer.

Option B has the grammatically incorrect part. The error is in the use of the verb 'calls up'. 

• The phrasal verb 'call up' means:
  
  - to telephone someone - e.g. I called him up and told him.
  
  - to bring something back to your mind - e.g. The smell of the ocean called up memories of her childhood.
  
  
• The use of the phrasal verb 'call up' in the above sentence is contextually incorrect. 
  
  
• Replace it with 'calls for' which means to publicly ask for something to happen. 
  
  e.g. They called for the immediate release of the hostages.
  
  The correct sentence will be: The ASEAN initiative in Myanmar calls for an immediate cessation of violence and utmost restraint from all sides.

Option C has the grammatically incorrect part. The error is in the use of the word 'reaches'.

• The word 'reach' is both a noun and a verb. 
  
  Reach (noun) = the number of people that a company is able to advertise or sell a product or service to
  
  e.g. The company's reach has expanded from 170 million users last year to more than 500 million this year.
  
  Reach (verb) = to arrive at a place, especially after spending a long time or a lot of effort travelling
  
  e.g. We won't reach Miami until five or six o'clock.
  
  
• The sentence talks about how BCCI can use its resources and 'reach' to raise money and aware people.  
  
  
• Thus, replace 'reaches' with 'reach' to make the sentence grammatically sound. 
  
  The correct sentence will be: The BCCI, the world’s richest cricketing board, can use its considerable resources and reach to raise both money and awareness.

Option B has the grammatically incorrect part. The error is in the use of the pronoun 'ours'.

• "Ours" is a possessive pronoun. 
  
  Possessive pronoun = A possessive pronoun does show ownership, but it does not come before a noun or in a noun phrase. It stands alone. It can also be used to replace a noun. Possessive pronouns are words like mine, yours, ours, his, hers and theirs. 
  
  e.g. The house on the corner is ours. 
  
  
• "Our" is a possessive adjective. 
  
  Possessive adjective = A possessive adjective is an adjective that is used to show ownership. It comes before a noun in the sentence and lets us know to whom the noun belongs. Possessive adjectives are words like my, your, his, her, its, our, their.
  
  e.g. I think you forgot your purse.
  
  
• The given sentence needs a possessive adjective for the noun 'meeting'. 
  
  
• Thus, replace "ours" with "our" to make the sentence grammatically sound. 
  
  The correct sentence will be: I reminded him of our meeting in Vrindavan and expressed my deep gratitude for the beautiful gift of wisdom he had shared.