Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
AZP, BYQ, CXR, ?

Correct option is B

To find the pattern in the series AZP, BYQ, CXR, ?, let's examine each letter position by position.
First Letters: A, B, C, ?
· The first letters are in alphabetical order: A, B, C, D.
· So, the first letter of the missing term should be D.
· Second Letters: Z, Y, X, ?
The second letters are in reverse alphabetical order: Z, Y, X, W.
So, the second letter of the missing term should be W.
Third Letters: P, Q, R, ?
· The third letters are in alphabetical order: P, Q, R, S.
· So, the third letter of the missing term should be S.
· Putting it all together, the missing term is DWS.
The correct answer is: (b) DWS