In 1776, America declared independence from Britain. Five years later the congress ratified the first national constitution.
C women did not do any of that except for C
The right answer is the increase of agricultural output, the Ming dinasty ruled China for almost 300 years (1368-1644) and enjoyed stability and prosperity, reforming the government and making more efficient use of the land, one of the things that made this increase possible was taxes, what excludes the third option. As for the first option, Ming government persecuted to some extent Christian and Muslims communities, and for the fourth, Tokugawa was a dinastic government in Japan, not China.
Balance
It is the tendency of the social system, when disturbed, to return to its original state. This is because change in one element is often accompanied by changes in other related elements.