The underlined part is grammatically incorrect. Preposition ‘to’ should be used with verb ‘get’ in place of ‘of’. The idiom "get your way" means to persuade other people to allow you to do what you want. Singular auxiliary verb i.e. ‘is’ should be used for singular subject ‘someone’. Thus, the most suited one is “to get his way with other people is”.

Hence, option C is the correct answer.

The underlined part is grammatically incorrect. Here, ‘up to date’ which is an adjective should be used. It means reflecting the latest information or changes. As, “news” is a singular noun thus, singular verb should be used. Replace, ‘matter’ with ‘matters’. The most suited one is “up with date with news that matters”.

Hence, option B is the correct answer.

Hence, option D is the correct answer.

Hence option D is the correct answer.

The underlined part is grammatically incorrect. 'The' is used before certain adjectives to give a plural meaning. The rich, The poor, etc.

Ex: The rich hate the poor.

Here in the sentence, ‘the’ should be placed before ‘Elderly’.

Also, all the actions which are performed mentally like understand, respect, think, mean, suppose, contemplate, etc are expressed in Simple present tense (v1) and not in Present Continuous tense (is/am/are + Ving).

Thus, ‘are contemplating’ should be replaced with ‘contemplate’ to make the sentence grammatically sound.

Contemplate is a verb which means ‘look thoughtfully for a long time at’. The correct place for an adverb in the sentence will be between the subject and the verb. 

Thus, the replacement is ‘The elderly usually contemplate’.

Hence, option A is the correct answer.

The underlined part is grammatically incorrect. ‘Inspite of’ is a preposition which means ‘in defiance of; regardless of; notwithstanding’. ‘Inspite’ is always followed by preposition ‘of’.

Ex: Inspite of her old age, she is very active.

Thus in the given sentence, the preposition ‘of’ should follow ‘inspite’ in order to make the sentence grammatically sound.

Also, the adverb ‘tremendously’ should be replaced with adjective ‘tremendous’ to qualify the noun ‘advances’.

Since the subject ‘cardiovascular disease’ is a singular noun it will take a singular verb ‘remains’ and not ‘remain’.

Thus, the correct replacement is ‘Inspite of tremendous advances cardiovascular disease remains’.

Hence, option B is the correct answer.

 The underlined part is grammatically correct. The noun ‘Criteria’ is plural in form. Hence, it will take “do” (a plural verb) in the underlined part and not ‘does’.

Hence, option D is the correct answer.

The underlined part is grammatically incorrect. The conjunction ‘that’ should be used after the verb ‘insist’ to introduce a subordinate clause. The preposition ‘of’ should be used as it expresses possession i.e. “member of her retinue….”. The noun ‘retinue’ is used for the group following and attending to some important person, and it should be used instead of the word "retinued". The most suited one is “that members of her retinue never”.

Hence, option C is the correct answer.

The underlined part is grammatically incorrect. With modal ‘could’, we generally use the adverb ‘not’.  And after it, we use the verb’s first form. The preposition ‘at’ should be used here as we use the preposition 'at' with ordinals. Thus, the most suited one is “not decide on a military division at”.

Hence, option B is the correct answer.

The underlined part is grammatically incorrect. The given sentence is in past tense so, verb ‘held’ should be used. A bond can be established between any two person or more than that. Thus, ‘soldiers’ should be used. A bond hold people ‘together’. So, the most suited one is “brotherhood held the soldiers together”.

Hence, option D is the correct answer.