Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
CAF, HEJ, SIQ, XMU, CQF, ?
1
HUJ
2
MUU
3
MUJ
4
TUK
Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
CAF, HEJ, SIQ, XMU, CQF, ?