Select the most appropriate ANTONYM of the highlighted word.
He was quite violent in his behaviour.

Correct option is C

The correct antonym of the given word is (c) Gentle.

Violent: Using or involving physical force intended to hurt, damage, or kill someone or something. (हिंसक, उग्र)
Example: The protest turned violent after police intervention.

Gentle: Having or showing a mild, kind, or tender temperament. (कोमल, मृदुल)
Example: He is very gentle with children and never raises his voice.

Synonyms: aggressive, brutal, savage, fierce
Antonyms: gentle, calm, peaceful, mild

Meanings of all the other given options:
· (a) Crazy: Mentally unstable or wild (पागल)
· (b) Aggressive: Ready to attack or confront (आक्रामक)
· (d) Savage: Wild and uncontrolled; violent (बर्बर, क्रूर)