Find the missing term in the following series:
AZ, CX, FU, ?
[A]IR
[B]IV
[C]JQ
[D]KP

JQ
In the above question, the pattern is:
1st letter
$latex A\xrightarrow{\text{+2}} C\xrightarrow{\text{+3}} F\xrightarrow{\text{+4}} \textcircled{J}$
2nd letter
$latex Z\xrightarrow{\text{-2}} X\xrightarrow{\text{-3}} U\xrightarrow{\text{-4}} \textcircled{Q}$