Direction: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
- 
					 _ b _baaabb _ a _ _ bb _ a _
- 
                        - abbaaba
- ababbaa
- babaaba
- baabaab
 
Correct Option: A
As per given question, the letter series is following the below pattern.
a b b b a a 
After using the pattern the complete letter series will be as below.
a b b b a a /a bb b a a/ a b b b a a
 
	