Which letter-cluster will replace the question mark (?) to complete the given series?
HIRC, ACYI, TWFO, MQMU, ?
1
HKTA
2
GKTA
3
FKTA
4
HKTZ
Which letter-cluster will replace the question mark (?) to complete the given series?
HIRC, ACYI, TWFO, MQMU, ?