Directions: The following sentence has been broken in three parts (A), (B) and (C). If there is any grammatical error in any of these parts, that is the answer. If there is no error, the answer is (D).

The children, accompanied by (A)/ the teachers, is going to (B)/ watch an educational movie. (C)/ No error (D)

This is the correct option as this part of the sentence has an error. The sentence has the subject-verb disagreement between the plural subject (children) and singular verb (is). The correct sentence should have a plural verb (are), instead of the singular verb (is). The accompanied phrase does not alter the relationship between the subject and the verb, but only provides extra information.