Number Series - Verbal and Reasoning

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

2 3 4 5 6 4 8

A 9 10

B 4 8

C 10 4

D 9 4

E 8 9

ANS:D - 9 4

This is an alternating addition series with a random number, 4, interpolated as every third number. In the main series, 1 is added, then 2 is added, then 1, then 2, and so on.