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 .

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.

You are correct, option D contains an error in subject-verb agreement. The correct verb form should be "is" instead of "are."

To identify the error, look for subject-verb agreement, which means that the verb should agree in number (singular or plural) with its subject. In this case, "each calendar" is the subject, which is singular. So, the singular form of the verb "is" should be used instead of the plural form "are."

Here's the corrected sentence: "In each calendar - the Gregorian, the Hebrew, and the Moslem - there is twelve months."