Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
IDK, LFL, OHM, RJN, ?
1
TLN
2
ULO
3
STO
4
SLP
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
IDK, LFL, OHM, RJN, ?