Direction: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
- 
					 d __ n __ __ __nndm __n
- 
                        - ndmnm
- mdnmn
- mndmn
- dmnnm
 
Correct Option: C
As per given question, the letter series is following the below pattern.
d m n m
Using the same pattern, we will get complete letter series.
d m n m/ dm nn / dm n n
 
	