"It" could replace "the animal."
If you know the gender of the creature, you could use "he" or "she," but I would recommend "it."
Hope this helps!
Answer:
It should be A. I got that right
Explanation:
1. Brahmin
2.Kshatriya
3. Vaishya
4. Sudra
The Brahmin were the most powerful
(I'm pretty sure this is right)