The correct answer is: E. No error
The sentence is grammatically correct. The subject and verb agree, and the sentence is complete.
Option A: “What” is a pronoun that is used to ask for information. In this sentence, it is used to ask what the person will think if school boys make fun of them.
Option B: “You will think” is a verb phrase that indicates that the person will
think something. In this sentence, it is used to indicate that the person will think about what school boys will say if they make fun of them.Option C: “If school boys” is a subordinate clause that indicates that the person is thinking about what school boys will say if they make fun of them.
Option D: “Make fun of you” is a verb phrase that indicates that the school boys will say something that is not nice about the person.
The sentence is grammatically correct because it follows the rules of English grammar. The subject and verb agree, and the sentence is complete.