Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
BELF, WZTN, RUBV, ?, HKRL
1
MGDV
2
TJLS
3
TBDE
4
MPJD
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
BELF, WZTN, RUBV, ?, HKRL