How are Hindu beliefs related to the caste system in India?

A: Hindus reject the caste system, offering the hope of nirvana to all.

B: The caste system is the foundation of Hinduism.

C: Hinduism urges people to move out of their castes.

D: To Hindus, all existence is ranked.

The caste system dictates that everyone is born into a certain role to fill in society. They can not and do not deviate from this role and follow it through their life. They are treated as per the role's requirements. The priests are given the highest of ranks, then come the warriors and so on. Therefore, to Hindus, all existence is ranked where one is above or below another. The answer is D.

D is indeed the correct answer.