Select the option that is related to the third letter-cluster in the same way as the second letter-cluster is related to the first-letter cluster.

CWIS : VBPF ∷ AOLD : ?

CWIS : VBPF

The sum of the place values of 'C' (3) and 'V' (22) is 25.

The sum of the place values of 'W' (23) and 'B' (2) is 25.

The sum of the place values of 'I' (9) and 'P' (16) is 25.

The sum of the place values of 'S' (19) and 'F' (6) is 25.

AOLD : ?

(A+?) = 25 ==>  (1+?) = 25 ==> ? = 25-1 = 24 ==> X

(O+?) = 25 ==> (15+?) = 25 ==> ? = 25-15 = 10 ==> J

(L+?) = 25 ==> (12+?) = 25 ==> ? = 25-12 = 13 ==> M

(D+?) = 25 ==> (4+?) = 25 ==> ? = 25-4 = 21 ==> U

So 'XJMU' will come in place of the question mark.