Question

Which of the following roles did the Roman Catholic Church play in Europe following the fall of the Roman Empire? A. It promoted religious tolerance to help Europeans benefit from Muslim inventions. B. It developed the system of feudalism that most European kingdoms adopted. C. It shifted political power from Western to Eastern Europe by relocating to Constantinople. D. It united many different European kingdoms under a shared religious culture.

Answer 1

I believe the answer is D. It united many different European kingdoms under a shared religious culture.

When roman empire falls, the fragments of what used to be territories formed their own kingdom/Governance.
and even though the kingdoms/governance are now separated, they still held into their religious Christian traditions as some sort of guidance in their life