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.
Gorge Washington warned that political parties would lead to a dangerous division within the United States--which he believed would make the US vulnerable to disputes and foreign attacks. He ultimately thought that political parties would weaken the nation.
The answer is Marie Curie
To help other people and him self
