Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
GKH, DNL, WQO, TTS, GWH, ?
1
KYP
2
DZL
3
KZO
4
FYP
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
GKH, DNL, WQO, TTS, GWH, ?