In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative.

a _ cacbc _ baca _ _ b

A. baba
B. babc
C. abac
D. cacb
Answer: B . babc


The series is abcac / bcaba / cabcb.
Thus, the series consits of three sequence.
The first three letters of each sequence are in a cyclic order and the last two letters of each sequence are the same as the first and third letters of the sequence.