Question
Despite of his diligent efforts, the esoteric nature of
the subject matter made it nearly impossible for him to grasp even the most rudimentary concepts. In each question below, a sentence is given with a part of it printed in bold type. That part may contain a grammatical error. Each sentence is followed by phrases 1), 2), 3) and 4). Find out which phrase should replace the phrase given in bold to correct the error, if there is any, and to make the sentence grammatically meaningful and correct. If the sentence is correct as it is and ā No correction is requiredā , mark 5)Ā asĀ theĀ answer.Solution
No preposition is used with āDespiteā.
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