The Security Council has primary responsibility, under the United Nations Charter, for the maintenance of international peace and security. It is for the Security Council to determine when and where a UN peace operation should be deployed.
The correct answer among all the other choices is A. the revival of democratic revolutions, and nationalism. This is a factor that caused German and Italian unification. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.
I think it’s true, good luck and i hope this helped!!