A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
AC, FN, KY, PJ,?

Correct option is B

Given series:AC, FN, KY, PJ, ?

First letters: A, F, K, P, ?
A is the 1st letter of the alphabet.
F is the 6th letter of the alphabet. (Difference from A to F is +5)
K is the 11th letter of the alphabet. (Difference from F to K is +5)
P is the 16th letter of the alphabet. (Difference from K to P is +5)
Thus, the next letter after P will be U (16 + 5 = 21st letter).
Second letters: C, N, Y, J, ?
C is the 3rd letter of the alphabet.
N is the 14th letter of the alphabet. (Difference from C to N is +11)
Y is the 25th letter of the alphabet. (Difference from N to Y is +11)
J is the 10th letter of the alphabet. (Difference from Y to J is +11, considering a cyclic shift in the alphabet).
Thus, the next letter after J will be U (10 + 11 = 21st letter).
Conclusion the next term in the series is UU.
Correct answer (b) UU.