Number Series - Verbal and Reasoning

Directions to SolveLook carefully for the pattern, and then choose which pair of numbers comes next.
Q1:

Look at this series: V, VIII, XI, XIV, __, XX, ... What number should fill the blank?

A IX

B XXIII

C XV

D XVII

ANS:D - XVII

This is a simple addition series; each number is 3 more than the previous number.