Here Primary Key IS VY
If its SuperKey Any Key It Should Must Contains VY as Part of it
Option A VXYZ So VY is Part of it Correct
Option B VWXZ SO No VY is Subset It Faills It Incorrect
Option C VWXY So VY is Part o f it Correct
Option D VWXYZ So VY is Part of it it Also Correct
Answer Is B