Direction: 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 E i.e. No error as your answer.

Despite of his busy schedule, (A)/ Mark diligently allocated time (B)/ and effort, ensuring the timely completion (C)/ of every single one of his assignments. (D)/ No error (E)