Answer: i am 99% sure it is A
Explanation:
So if you think of a pyramid, the highest rank is on top, the order goes
1. Brahmins (highest rank or most respected) - priests, and the academic class
2. Kshatriyas - Rulers, administrators, and warriors
3. Vaishyas - artists, tradesmen, farmers, merchants
4. Shudras - commoners, peasants, servants
5. Dalits/outcastes/untouchables - street sweepers, latrine cleaners
Hope this helped a bit!
Some Challenges in the tropical rainforest is that Deforestation is common and its really bad because they're limiting the rainforest size just to build homes and towns. Basically, Just forgetting about the habitats and the animals and the other tribes.