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.
Many people have found (A) the monotonous (B) buzzing of the vuvuzela in the 2010 - World Cup (C) matches so annoyed (D) .
A. have found
B. monotonous
C. 2010 - World Cup
D. annoyed