Ten male animals each of type X and Y were living together for few months in captivity in a well defined area (full of greenery). Other types of animals were not present in this area. Then an animal Z was introduced in this area. After few days, their numbers were counted as shown here.
| X | Y | Z |
| 10 | 2 | 1 |
A Z is a carnivore.
B Y is a herbivore.
C X is a herbivore.
D All of these