QDXM : SFYN :: UIOZ : ?

(a) WKPA

(b) QNLA

(c) LPWA

(d) PAQ

Ans: (a)

Q + 2 = S

D +2 = F

X + 1 = Y

M + 1 = N

SIMILARLY,

U + 2 = W

I +2 = K

O + 1 = P

Z + 1 = A