One Word Substitutes - Verbal and Reasoning

Directions to SolveIn questions given below out of four alternatives, choose the one which can be substituted for the given word/sentence.
Q1:

One who is determined to exact full vengeance for wrongs done to him

A Virulent

B Vindictive

C Usurer

D Vindicator

ANS:B - Vindictive

No answer description is available.