Answer: Head of Military, Pardons were to be granted, Making treaties, Understanding and recognizing other foreign nations, Signing or voting legislation, and Nominating and appointing officails
Explanation:
It is "C. the power to make treaties" that requires a 2/3 vote from the Senate, since the Founding Fathers wanted to ensure that the United States only made such treaties with reliable nations.
Southwest A??? I think I am 60% sure
They travelled great distances by sea.