The Division of the Empire:
Given the sheer size of the empire, it was almost impossible to govern effectively. ... The Western half of the empire would be ruled by Diocletian out of Rome. The Eastern half would be ruled by Maximian out of Byzantium.
I believe the answer is D.
The Gadsden Purchase enabled the United States to "B. Increasecrop production in the Southwest," since this was a purchase of relatively fertile land in the region.
T lines up with the actual size of objects in space.
