I believe they traded oil
I believe the answer is A) Before the Industrial Revolution, European industries relied on manual labor to produce goods, but afterward, they began relying on machines.
The Industrial Revolution was a period of time when Western Europe and the United States began to transition to using machines instead of manual labor. Lots of new inventions were thought of during this time period.
Hope this helps! Please let me know if I'm wrong :)
Answer:by allowing unconstitutional laws to be challenged and overturned
Explanation:
The answer to your question would be D.The battle of Antietam. :)
