One of the most important beliefs in Confucianism is that: A. society should not have strict social roles.
B. people should be able to choose their leaders.
C. rulers should be kind to their subjects.
D. women should have equal rights to men.

I think c

Explanation:

they believe in being kind to others so I think they would want to be nice to their subjects

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."