Direction: In each of the following letter series, some of the letters are missing, which are given in the same order as one of the alternatives below it. Chose the correct alternatives.
- 
					 c_bba_cab_ac_ab_ac
- 
                        - bcacb
- babcc
- abcbc
- acbcb
 
Correct Option: D
The sequence is made of repetition of two blocks cab and bac alternatively.
cab/bac/cab/bac/cab/bac  ⇒ acbcb 
 
	