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 _ c _ abb _ a _ bc _ bc _ ab

A. cbcaaa
B. bcccab
C. bccaac
D. acbabc

Answer: Option C

Explanation:

The series is abccab / bcaabc / abccab.

Obviously, the pattern abccab / bcaabc is repeated.