Identify the segment in the sentence, which contains the grammatical error.
The Principal was extremely angry on the boys who threw the pieces of chalk at the teacher.

Correct option is B

The segment "extremely angry on the boys" contains the grammatical error.
· The correct preposition should be "with," leading to "extremely angry with the boys," as it properly conveys the direction of anger towards someone.
· Grammatical rule: When expressing anger directed at someone, "angry with" is the standard prepositional usage.
· Example: The teacher was extremely angry with the students for not submitting their assignments on time, correctly using the preposition "with."