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)

T, R, P,  N, L, ?, ?


A) J, G

B) J, H

C) K, H

D) K, I

Answer:

Option B

Explanation:

$T - 2  \rightarrow R, R - 2 \rightarrow P, P - 2 \rightarrow N, N - 2\rightarrow L, L - 2\rightarrow J, J - 2\rightarrow H$

Hence the answer is (b).