Select the letter - cluster from among the given options that can replace the question mark (?) in the following series.
PQHI, ?, TULM, VWNO
1
RSCD
2
RSJK
3
NOFG
4
XYJK
Select the letter - cluster from among the given options that can replace the question mark (?) in the following series.
PQHI, ?, TULM, VWNO