Select the letter cluster that will replace the question mark (?) in the following series.
QHOZ, RIPA, ?, XOVG, YPWH
1
UMSC
2
ULSD
3
UNSD
4
ULSB
Select the letter cluster that will replace the question mark (?) in the following series.
QHOZ, RIPA, ?, XOVG, YPWH