Directions: The sentence given below is divided into four parts (A), (B), (C) and (D). One of these parts may contain an error. You have to indicate that part as your answer. If there is no error, mark (E) as your answer.

(A) Despite of entering middle age, the book (B) continues to delight both the young and (C) the old in (D) ever-increasing numbers. (E) No error