Select the related word/letters/number from the given alternatives.

DHLP:WSOK::FJNR: ?

Expression = DHLP:WSOK

The pattern followed is that there are as many alphabets to the left of the first letter as there are to the right of the leftmost letter in right hand side

D is the fourth letter from left end and W is the fourth letter from last, H is 8th from left end and S is 8th from right end. L is 12th from left end and O is 12th from right end. Finally, P is 16th from left end and K is 16th from right end in English alphabetical series.

Similarly, for FJNR :

Now, F is 6th from left end, thus first letter will be 6th from right end = U

J is 10th from left end, second letter will be 10th from right end = Q

N is 14th from left end, third letter will be 14th from right end = M

R is 18th from left end, third letter will be 18th from right end = I

Thus, missing term = UQMI

=> Ans - (A)