Which of the following terms will replace the question mark (?) in the given series

Which of the following terms will replace the question mark (?) in the given series?

AVTE CTRG ERPI GPNK ?

A.            INLM

B.            MINL

C.            ILNM

D.            INJM

Sol:

Pattern follows here is: +2, -2, -2, +2