The U. S. Constitution gives Congress the power to A:conduct trials in the U. S. Supreme Court
B:combine state and federal trial courts
C:create inferior courts as necessary
D:close the state courts during a U. S. trial

Make laws. Declare war. Raise and provide public money and oversee its proper expenditure.

Explanation:

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!

its d i know cause i've been googling it