A historian uses this political map to study Roman civilization to determine how the Roman Empire expanded over time. Thus the correct option is B.
What is Map?
A map is referred to as a geographical representation of any location to identify the place with the help of physical features like the presence of the sea, forests, roads, and so on.
This map helps to understand the presence of natural resources in ancient times and directions in modern times to reach any location timely.
It helps historians determine how the Roman Empire expanded over time.It indicates how far the Roman civilization reached throughout many countries, nations, and even geographic regions also including the expansion of culture and religion.
Therefore, option B is appropriate.
Learn more about Map, here:
https://brainly.com/question/1565784
#SPJ2