Wu Zhao lowered taxes, and increased food production. Also Wu funded public projects and tried to reduce the power of the military in China. Wu also replaced aristocratic military men with scholar-officals.
4. World population did not reach one billion until 1804.
The GI Bill helped veterans pay for school and living expenses so they could attend college and obtain a degree. Those who attended college were more likely to find better paying jobs.
The answer is A!
Explanation: This system separated them into groups of ranked categories.
People that have higher castes have a higher status and vice versa :)