Directions: In the following sentence, some parts have been underlined and labelled (A), (B), (C) and (D). Identify the part that contains an error. If there is no error in any part of the sentence, mark your answer as (E).

(A) I like (B) such boys who are industrious, sincere (C) and at the same time (D) obedient to their teachers. (E) No error.