Identify the segment in the sentence which contains the grammatical error.
It is her knowledge of computers that interest me.

Correct option is D

Option (d) "interest me" contains a grammatical error.
· The verb "interest" should be in the singular form "interests" to agree with the singular subject "knowledge." The correct sentence should be "It is her knowledge of computers that interests me."
· Grammatical Rule: When the subject of a sentence is singular, the verb must also be singular. In this case, "knowledge" is a singular noun, so the verb "interests" must be used.
· Example: "The book that you gave me interests me a lot." Here, "interests" correctly agrees with the singular subject "book."