Select the Word or Phrase That Best Matches the Definition

Select the word or phrase that best matches the definition or example.
-The idea that members of higher castes must adhere to strict regulations limiting or forbidding their contact with objects and members of lower castes to preserve their own caste standing and their relationship with the gods.

A) Wang Mang
B) China's scholar-gentry class
C) Ge Hong
D) Yellow Turban Rebellion
E) caste as varna
F) caste as jati
G) "ritual purity" in Indian social practice
H) Greek slavery
I) Roman slavery
J) Spartacus
K) patriarchy
L) the "three obediences"
M) Empress Wu
N) Aspasia
O) Pericles
P) helots