The following sentence has been split into four segments. Identify the segment that contains a grammatical error:

One of these authors are / going to win / the Booker Award / for his or her book.

The segment that contains a grammatical error is Option A.

In English grammar, when we use “one of” followed by a plural noun or pronoun, the verb that follows should be singular, not plural. In this case, “one of these authors” refers to a single author, so the verb “is” should be used instead of “are”. Hence, the segment “One of these authors are” contains a grammatical error. The corrected phrase should be “One of these authors is”. So, the corrected sentence would be:

“One of these authors is going to win the Booker Award for his or her book.”