In each of these questions, a sentence has been divided into four parts and marked a. b, c and d. One of these parts contains a mistake in grammar Idiom or syntax. Identify that part and mark it as the answer.
A. Psychiatrists claim that the dream process
B. can offer insights into
C. how the brain has worked, though
D. it cannot be taken as the final evidence
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Correct Answer : C.
how the brain works. The simple present tense is needed as part (b) indicates.