1. 

In the following question, a letter series is given. Some of the letters of the series are missing. This missing letters are given in same order as one of the four / five alternatives below the series. Find out the correct alternative.

mc__m__a__ca__ca__c__mc
A. acmmma
B. camcam
C. aaacmm
D. acmmca

Answer: Option A

Explanation:

Pattern of the series as shown below

m c a/ m c a/ m c a/ m c a/ m c a/ mc => acmmma

Hence, the missing letters are acmmma.