Select the letter-cluster that can replace the question mark (?) in the following series.
FJL, CMI, ?, WSC, TVZ, QYW
1
YEG
2
ZPF
3
ZQE
4
YQF
Select the letter-cluster that can replace the question mark (?) in the following series.
FJL, CMI, ?, WSC, TVZ, QYW