. What was the system that banned all British trade from 'the continent'? A. The Louisiana Purchase

B. The European Union

C. Customs

D. The Continental System

A

Explanation: i need brainliest plus ive done this before

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

because its important to learn about other countries and how high tech they are compared to us. also its good to learn about other cultures and how ours differs and in common also we need to learn about companies that we still buy since they ship it here.