Select the option that is related to the fifth letter-cluster in the same way as the fourth letter-cluster is related to the third letter-cluster and the second letter-cluster is related to the first letter-cluster.
WERGHT : REWTHG :: CFGYUR : GFCRUY :: DFVREW : ?
1
VFDREW
2
VFDWER
3
WERVRD
4
FVDWER