Direction: In the following two questions, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
- 
					 adb _ ac _ da _ cddcb _ dbc _ cbda
- 
                        - b c c b a
- c c b b a
- c b b a a
- b b c a d
 
Correct Option: C
The given letter series in below pattern.
a d b c
Using the same pattern, we will get complete letter series.
a d b c/ a c b d/ a b cd/dcb a /dbc a /cbda
 
	