Directions: The given sentence is divided into four parts A, B, C, and D. Choose the part that contains an error as your answer. If the sentence is error-free, mark 'No error' as your answer.

The team had to buckle up and delve into (A) the voluminous literature to flesh out a comprehensive review, (B) aiming to brush up on prior studies (C) and break through the barriers of conventional wisdom. (D)