Direction: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
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a _ ab_bcbc_caca_
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- ccba
- acba
- bccb
- bcab
Correct Option: D
As per given question, the letter series is following the below pattern.
a b a b c
After using the pattern the complete letter series will be as below.
a b a b c /bc bc a/ caca b
