The correct answer among all the other choices is C. The feuds between religious and secular power over investiture. The fall of the western Roman empire contributed most directly to this circumstance. Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
is there multiple choice or anything? a picture? cause i don't understand wym by this, i don't think anyone could understand
D.) Ancient Mesopotamian Civilizations
A vast savanana or grassland region, known as the Llanos, is the primary biome of the Orinoco River Basin