Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
ACDF, GIJL, MOPR, ?
1
STVX
2
SVUX
3
SVTX
4
SUVX
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
ACDF, GIJL, MOPR, ?