Select the letter - cluster from among the given options that can replace the question mark (?) in the following series.
BFI, EIL, HLO, KOR, ?
1
HNM
2
QSV
3
LPS
4
NRU
Select the letter - cluster from among the given options that can replace the question mark (?) in the following series.
BFI, EIL, HLO, KOR, ?