Answer: I believe that it is D
Explanation:
This is because Islam used lots of trade routes to get to lots of places. Though the military conquest took over lots of places.
Answer:
the answer is the last one
Spain by buying it for 15 million
C. Federalism
What is funny, is I'm am learning about this in school too!
It was because Adolf Hitler was in charge of Germany at that time and wanted to conquer many countries