C. allows historians to confirm that a source’s information is correct. Hope that helps!
I think it may be B, a borrowed language. The others don't seem right.
Answer:
International integration refers to the process by which supranational institutions replace national ones. Supranationalism challenges the foundations of realism (state sovereignty and territorial integrity) because the sate authority is subordinated to the global structure it can be perceived as giving up sovereignty.
Explanation:
