Question

how did the lives of peasants change under the government of emperor wudi?
they were better able to move between classes.
they were sent to schools where legalism was taught.
they were required to work for the government one month per year.
they were forced to establish a standard examination system.

Explanation:

Under Emperor Wudi of the Han - Dynasty, peasants were required to provide corvée labor for the government, typically one month per year. Social mobility was limited, Legalism was not the dominant ideology during his reign (Confucianism was promoted), and peasants were not involved in establishing a standard examination system.

Answer:

They were required to work for the government one month per year.