Which letter-cluster will replace the question mark (?) to complete the given series?
XCMQ, YDNR, ?, AFPT, BGQU
1
ZEOR
2
ZEPS
3
ZEUS
4
ZEOS
Which letter-cluster will replace the question mark (?) to complete the given series?
XCMQ, YDNR, ?, AFPT, BGQU