Antonym of HESITATE

Answer: Option C

Hesitate : pause in indecision before saying or doing something.
Proud : feeling deep pleasure or satisfaction as a result of one's own achievements, qualities, or possessions or those of someone with whom one is closely associated.
Confident : feeling or showing confidence in oneself or one's abilities or qualities.
Certain : able to be firmly relied on to happen or be the case.
Reluctant : unwilling and hesitant; disinclined.

Antonym of Hesitate is Certain