Answer: C. They were absolute monarchies.
Step-by-step explanation:
The Government of the Zhou dynasty which was the longest reigning dynasty in the Chinese history, had an absolute monarchy. In this system of Government, the Emperor's rule was absolute and they could make decisions concerning the empire unilaterally.
This was also the case in Europe in the middle ages. Claiming the Divine rights of Kings which meant that they received their power from God, monarchs enjoyed supreme power in the realm and could do as they pleased.