Europeans began to structure their economies around international trade during the Commercial Revolution.
Answer:
C
Explanation:
Keyes was the economist who argued for this because he felt this was write. The term of this process used in his book is called " Keynesianism". This term is stilled used today.
It's D.
Many alchemists wanted to create the sorcerers stone (creates gold according to a legend).
They studied ores to find out more about the world.
Plus, they also wanted to cure diseases with their practice. (To this day you see stone therapy, which is said to be beneficial for your health)
Answer : The Black Plague was brought to Europe by 12 ships the came from the Black Sea