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)

B, D, F, I, L, P, ?


A) U

B) S

C) T

D) R

Answer:

Option C

Explanation:

B+2D,D+2F,F+3I,I+3L,L+4P,P+4T

Hence the answer is (c).