What Was the Primary Result of the Fall of the Roman

What was the primary result of the fall of the Roman empire?

A) Despite the collapse of classical Mediterranean civilization, the basic cultural unity of the region was retained.
B) The collapse of the Roman empire led to cultural regression throughout the region of Mediterranean civilization.
C) Rome?s fall split the unity of the Mediterranean lands that had been won through Hellenistic culture and then the Roman empire.
D) Rome?s fall was devastating in its eastern half, but the culture of the western regions was fundamentally unaffected.