Which letter-cluster will replace the question mark (?) to complete the given series?
ZYXW, STUV, RQPO, ?, JIHG, CDEF
1
NMLK
2
KLMN
3
JIHG
4
LKMN
Which letter-cluster will replace the question mark (?) to complete the given series?
ZYXW, STUV, RQPO, ?, JIHG, CDEF