1) M, N, O, L, R, I, V, ? A) A B) E C) F D) H E) Z Answer: Option BExplanation:The given sequence is a combination of two series : I. M,O,R,V and II. N, L, I, ? The pattern in I is : M+2→O,O+3→R,R+4→V The pattern in II is : N−2→L,L−3→I,I−4→E So, the missing letter is E.