The correct answer is crushed by taxes and debt, desperate peasants revolted
In the early years of the second century AD, the Han Dynasty declined. Peasant rebellions and rivalries in the Chinese court contributed to the fall. Even the public procurement system did not function properly and honestly: Chinese officials began to be chosen for public office because of their personal influence rather than their knowledge and intellect.
In the year 220 AD, the Han empire was fragmented into three kingdoms. Constant guerrillas have caused serious problems for China. This period of Chinese history is called the Age of Disunity, which lasted until 589 AD.