Name the dynasty rural over China​

Historians typically consider the following dynasties to have unified China proper: the Qin dynasty, the Western Han, the Xin dynasty, the Eastern Han, the Western Jin, the Sui dynasty, the Tang dynasty, the Wu Zhou, the Northern Song, the Yuan dynasty, the Ming dynasty, and the Qing dynasty.

answer; /// i believe its(c) policymakers prioritize the various problems facing the state;

the answer is d. amendments.