Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
NKY, LHU, JEQ, ?, FYI
1
HBM
2
HCN
3
GAO
4
IBN
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
NKY, LHU, JEQ, ?, FYI