It was after the Battle of Antietam
The Columbian Exchange lead to an increase in the demand for skilled labor in Europe, because D) an abundance of raw materials from the new world needed to be made into finished goods. Many raw materials and new products were brought over to Europe from the Americas which needed to be made into finished products.
Answer:
C. The Soviet Union became an ally of the United States and Great Britain during World War II
Explanation:
I believe it’s B hope it helps mark me brainliest if correct
