One who is fond of fighting

A. Bellicose

B. Aggressive

C. Belligerent

D. Militant

Answer: Option A

Solution(By Examveda Team)

One word substitution is Bellicose.

Bellicose: demonstrating aggression and willingness to fight.
Aggressive: ready or likely to attack or confront
Belligerent: engaged in a war or conflict, as recognized by international law.
Militant: favouring confrontational or violent methods in support of a political or social cause.