Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
HLPE, DHXM, ZDFU, ? , RVVK
1
VQHO
2
FBIR
3
VZNC
4
FPED
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
HLPE, DHXM, ZDFU, ? , RVVK