Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
Y4F, V9G, ?, P43O, M90V
1
S20K
2
S20J
3
S14K
4
S14U
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
Y4F, V9G, ?, P43O, M90V