Rohit is a very courageous boy.

A. frightened

B. naughty

C. cowardly

D. happy

Answer: Option C

Solution(By Examveda Team)

Courageous : not deterred by danger or pain; brave.
Frightened : afraid or anxious.
Naughty : (especially of a child) badly behaved; disobedient.
Cowardly : lacking courage.
Happy : feeling or showing pleasure or contentment.

Antonym of Courageous is Cowardly