The question is from CAT Sentence Correction. CAT exam has not been testing Sentence Correction for the past 5 years. It is still important to better understand English Grammar. Solve CAT Questions from Sentence Correction to get more practice and 2IIMs CAT questions bank provides you with CAT questions from Sentence Correction that can help you gear for CAT Exam.
Question 5: The solution that he worked out was not only correct but complicated.
"Correct" is a positive description of the solution, while "complicated" is not. So a parallel sentence construction (in this case, ‘not only…but’) is inappropriate.
Option C uses ‘only’ inappropriately.
Option B is the correct choice.
The question is " Choose the grammatically correct option "
Choice B is the correct answer.
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