Select the term from among the given options that can replace the question mark (?) in the following series.
TUM 21 RVP 15 ? NXV 3 LYY -3
1
PWS 9
2
QSP 8
3
PSR 8
4
ORP 9
Select the term from among the given options that can replace the question mark (?) in the following series.
TUM 21 RVP 15 ? NXV 3 LYY -3