Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
CUH, HQK, MMN, RIQ, ?
1
UDS
2
WET
3
VGT
4
XFS
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
CUH, HQK, MMN, RIQ, ?