The underlined part is grammatically incorrect. For noun 'household', an adjective is needed i.e. 'impecunious". It should be "an impecunious household". As the first part of the sentence is in the past tense, the second part should be in the past tense too i.e. "she knew". Thus "impecunious household, she knew" is the most suited one.

Hence, option B is the correct answer.

The sentence does not need any improvement. Phrasal verb "Ram into" means to hit against something with force. "Rammed into" is appropriate to use here as the sentence talks about some past event. Option D is correct.

There is no need for improvement, the given sentence is correct.

Hence, option B is the correct answer.

“Why you did need the money” will be replaced with “ why you needed the money”, the given statement is not an interrogative sentence ,it is a simple past sentence ,thus the use of “did” is superfluous and Verb (IInd form) is used in past tense

Hence, option B is the correct answer.

There is no need for improvement, “have the right to something” is a phrase means to have a legal permission to do something.

Hence, option D is the correct answer.

The underlined segment is erroneous because of ‘mostly’. It should be replaced with ‘most’ which is used to form the superlative of adjectives and adverbs, especially those of more than one syllable.

Hence, ‘is the most’ should replace the underlined segment, making option A the correct answer.

The underlined part is grammatically incorrect.

• The given sentence talks about 'all religions'; thus, "among" should be used in place of 'between'.
  
  Among - is used when talking about people or things that are not distinct and are viewed as a group
  e.g. There wasn’t much unity among the council members.
  
  Between - We use between to refer to two things which are clearly separated.
  e.g. Our holiday house is between the mountains and the sea.
  
  
• According to the subject-verb agreement, the verb should agree with the subject in number, i.e. a singular subject will take a singular verb and a plural subject will take a plural verb. 
  
  e.g. He is playing in the garden. 
  
  e.g. They are playing in the garden.  
  
  
• As the subject is 'confusion' (which is singular), a singular verb ("involves") should be used.
  
  
• Thus, replace the underlined part with the one given in option B.

Hence, option B is the correct answer.

The underlined part is grammatically incorrect.

• The definite article "the" should be used in place of "a" in the underlined part as the way is particular; he wanted things in that way only.
  
  The definite article is the word "the." It is used before a noun to define it as something specific (e.g., something previously mentioned or known, something unique, or something being identified by the speaker).
  
  Thus, replace 'a' with 'the' in the given sentence.
  
  
• After the plural subject "we", we use either a plural auxiliary (in present perfect tense) "have" or "had" (in past perfect tense). 
  
  Present perfect tense - An action that started in the past and continues to the present; our reference point is the present.
  
  Past perfect tense - An action that happened before a time in the past; our reference point is the past.
  
  The sentence is of the present perfect tense. 
  
  
• Thus, replace the underlined part with the one given in option A.  

Hence, option A is the correct answer.

The underlined part is grammatically incorrect. The subject of the given sentence i.e. "the tobacco industry" which is singular thus, singular auxiliary verb should be used i.e. "has".  An adverb is generally used to modify a verb. So, the adverb "deliberately" will be used to modify the verb 'employed'. Thus, the best suited is “has deliberately employed strategic”.

Hence, option D is the correct answer.