after the roman empire collapsed, the catholic church began to unify europe by taking on many duties of a…

Brief Explanations:

After the fall of the Roman Empire, there was a power vacuum in Europe. The Catholic Church filled this void by assuming many governmental - like functions such as providing social services (education, charity), having a hierarchical administrative structure (similar to a government's bureaucracy), and having legal - like authority (church laws). Attracting Christians was part of its growth but not the main unifying factor in the context of filling the post - Roman power gap. Priests were not elected by the general people in the traditional sense during that era. Making the pope as powerful as an emperor was a result of its power - taking rather than the initial unifying method.

Answer:

taking on many duties of a government.