The mongol empire's system of administering its territories led to: a. a period of peace and economic prosperity. b. a flourishing of christianity throughout asia. c. a chaotic war that raged throughout its reign. d. an inefficient bureaucracy that weakened the empire.

A - A period of peace and economic prosperity 

This is because, when the Mongol's rule, a certain region of the world experiences prosperity. Although modern day, we wouldn't refer to it as peace and prosperity, it was generally peace and prosperity during their age.

Hope this helps!