1.  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: Option B

Explanation:

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.