Number Series - Verbal and Reasoning

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

11 14 14 17 17 20 20

A 23 23

B 23 26

C 21 24

D 24 24

E 24 27

ANS:A - 23 23

This is a simple addition series with repetition. It adds 3 to each number to arrive at the next, which is repeated before 3 is added again.