Question

the social system of aryan civilization in india
reincarnation
caste system
yin and yang
bureaucracy

Explanation:

The Aryan civilization in India is known for establishing the Caste System, a hierarchical social structure. Reincarnation is a religious - philosophical concept, Yin and Yang is from Chinese philosophy, and bureaucracy is a general administrative system not specific to Aryan India's social system.

Answer:

B. Caste System