Different animals have been placed into two separate groups X and Y. Identify the basis of placing them separately.
AGroup X members are active during the day and group Y members are active at night.
BGroup X members are animal eating and group Y members are plant eating.
CGroup X members live in open area and group Y members always live in cages.
DGroup X members are pet animals while group Y members are wild animals.
Answer is A as the animals in group x are active during the day and theanimals in group y are active at night.