sentence contain and error in Subject-Verb Agreement.

A.Nine innings are the usual length of a baseball game.

B. Benefits are vacation, sick leave, and other nonwage forms of compensation.

C.Bonnie and Clyde glamorizes the images of bank robbers Bonnie Parker and Clyde Barrow.

D.In each calendar-the Gregorian, the Hebrew, and the Moslem-there are twelve months.
I think it D .

3 answers

Nope. D. is correct.

is it b (glamorized)

Yes. The error is in b. The verb -- glamorize -- should be plural because the subject (Bonnie and Clyde) is plural.