I'm pretty sure it's either A or B. I hope this helps!
The correct answer is:
B. Relocation to suburbs.
Relocation to suburbs has been a constant of urban life since the early 1900s.

General Belisarius is known for expanding the byzantine empire
Thomas Jefferson passed away on July 4th, 1826. Also, on July 4th, 1776, the Declaration of Independence was passed in which Jefferson was a founding father of.