Describe the causes that led to the fall of the Roman Empire

Some of the reasons that historians give for the fall of the western Roman Empire include barbarian migration and invasion, economic problems, the growing power of the Eastern Empire, overexpansion and military overspending, political corruption and instability, the rise of Christianity, and the weakening of the Roman legions.

Explanation: I googled it

i would say your answer is a)

sorry if im wrong