7144. The teacher felt nettled at the rowdiness of the boys.

✅ The correct answer is option B.
Pleased : feeling or showing pleasure and satisfaction, especially at an event or a situation.

Annoyed : slightly angry; irritated.

Disgusted : feeling or expressing revulsion or strong disapproval.

Perplexed : completely baffled; very puzzled.

Nettled : irritate or annoy (someone).

Synonym of Nettled is Annoyed