Direction: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
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_ b _baaabb _ a _ _ bb _ a _
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- 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