Answer :
The correct statement is solved and explained.
What are the mistakes in the statements?
Corrected Sentence: Whether one agrees with Keynesian theories or not, one must be sufficiently conversant with them to comprehend twentieth-century economic practices.
The explanation for the right response B
This statement contains a mistake at (B), where the wrong pronoun is used. The later pronoun "one" and the first-person plural pronoun "we" do not agree.
The reason was given for Wrong Answer A:
Nothing is wrong here (A). Understanding Keynesian theories will make it easier to comprehend "twentieth-century economic activities," as the infinitive "To understand," says.
The reason was given for Wrong Answer C:
Nothing is wrong here (C). An acceptable idiom is created when the preposition "with" is combined with the adverb "familiar."
Justification for Wrong Answer D:
Nothing is wrong here (D). The prepositional phrase "with them" requires that the subject, "them," be in the objective case, as it is in this instance.
Justification for Wrong Answer E:
The statement contains a mistake.
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