Answer: The Kansas-Nebraska Act of 1854 was a huge catalyst in sending the nation to the Civil War. This act reversed the Missouri Compromise and allowed slavery in the remainder of the original areas of the Louisiana Purchase. The balance of power shifted in the government and across the land.
The Mexican war led to the capture of Arizona, New Mexico, Texas, and a part of California. Hope this helps.
The answer is D. You really don't know about 9/11?
