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.


A. nnmmll
B. nmlnml
C. mnlnlm
D. nmnnnl

Answer: Option D


Pattern of the series as shown below

nml/mnl/nml/mnl/nml/mnl => nmnnnl

Hence, the missing letters are nmnnnl.