He is a man with a jovial nature.

A. talkative

B. morose

C. monotonous

D. quiet

Answer: Option B

Solution(By Examveda Team)

Jovial : cheerful and friendly.
Talkative : fond of or given to talking.
Morose : sullen and ill-tempered.
Monotonous : dull, tedious, and repetitious; lacking in variety and interest.
Quiet : making little or no noise.

Antonym of Jovial is Morose