eeeeeee help, please!!!!!!

What was life like in the Mongol Empire?

SELECT AN ANSWER
A.People were required to work on large construction projects for Genghis Khan.

B.It was easy to trade and communicate with the rest of the large empire.

C.There were many isolated civilizations that did not trade or communicate with the other groups.

D.Mongolian soldiers closely observed the actions of the common people and punished behavior that did not follow Mongolian customs.