I believe the answer you are looking for is A.
Answer:
The Treaty of Paris
Explanation:
the British Crown formally recognized American independence and ceded most of its territory east of the Mississippi River to the United States, doubling the size of the new nation and paving the way for westward expansion
Deceptive, dishonest, irresponsible, untrustworthy, unreliable, unacceptable, unbelievable!
The union had several advantages over the Confederacy, such as having more men, factories, railroad tracks, and more telegraph lines.
