Explanation:
I'll suggest B is the answer
1. The rulers who came to power after Charlemagne failed to defend the empire.
2. Europe was threatened by Muslims, Magyars, and Vikings in the 9th and 10th centuries.
Begun in the 3rd century AD, the crisis of the Roman Empire was mainly caused by the fragmentation of its western part with the arrival and installation of the Germanic peoples.
From the third century AD, the Roman Empire began its phase of decline and decay, which eventually resulted in the fragmentation of its western part. The economic and political crises added the arrival of the Germans, leading to the end of the western part of the empire and the occupation of its territory by these peoples.
Roman art was produced by the people belonging to Ancient Rome and lasted from about the 8th century BC to the 4th century AD.
It was strongly influenced by the Etruscans and Greeks, and the most significant artistic manifestations date back to the establishment of the Republic in 509 BC.
They were afraid; they tried to stop Rome by supporting Rome's enemies in wars, but they were not successful and were defeated by the Romans. PLEASE MARK ME BRAINLIEST
