Which remained strongly organized and grew more powerful as the western roman empire collapsed? the military command the roman catholic church the orthodox church the trade networks

Hi there the only thing that remained of the Western Roman Empire was the  Christian Church. The military was the only thing holding the country together at that point and it fell apart, losing everything save Northern France and Northwest Africa. The trade networks and the provincial elite were completely lost, leading to the Dark Ages of little economic growth and little to no cultural expression because it was actively repressed by anti-Roman sentiment.

It is C. christian church