Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.

The maps, together with a statement (A) asking for (B) approval for the 1 /5000 planning of Thu Thiem New Urban Area, (C) was submitted to the central Government (D) at that time

A. asking

B. approval

C. was

D. at that time