Direction: These questions are based on letter series. In each of these series, some letters are missing. Select the correct alternative.
- 
					 aa_aabb_b_aa_aabb_bb
- 
                        - bbbaa
- bbbba
- aabbb
- babba
 
Correct Option: C
First and Last word is of same letters. Middle words are having opposite letters.
aaaaa/bbabb/aabaa/bbbbb
Hence, set aabbb come in gap respectively.
 
	