Answer:
A(survival of the confederacy
Explanation:
took the assignment.
Large regions run by a viceroy appointed by the king
These people did invade China, but their raids were not successful.
They developed new political ideas by reflecting on the existing political institutions and the relations between the people in a society. They tried to come up with new ways to make things better that were heavily involved in ethics, epistemology, ontology, and a bunch of other philosophical ideas whose origins can be found in ancient philosophical works.