In this type of questions, a series of single, pairs or groups of letters or combinations of letters and numerals are given. The terms of the series form a certain pattern as regards the position of the letter in the English alphabet. Find the missing or wrong term in series 

1)

GH, JL, NQ, SW YD, ?


A) EJ

B) FJ

C) EL

D) FL

Answer:

Option D

Explanation:

1st letter : $G+3 \rightarrow J, J+4 \rightarrow N, N+5\rightarrow S, S+6\rightarrow Y, Y+7\rightarrow F$

2nd letter : $H+4 \rightarrow L, L+5 \rightarrow Q, Q+6\rightarrow W,$

$W+7\rightarrow D, D+8\rightarrow L$

Hence the answer is (d).