Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it ?

_ op _ mo _ n _ _ pnmop _.

A. mnpmon

B. mpnmop

C. mnompn

D. mnpomn

Answer: Option A

Solution(By Examveda Team)

The series is mopn/mopn/mopn/mopn. Thus, the pattern 'mopn' is repeated.