Answer: B. Allowed people to live in permanent settlements
Explanation:
The Neolithic Revolution was a period in human history where humans developed better agricultural techniques that allowed them to make food instead of hunting and gathering it.
The ability to grow food meant that humans had surpluses that could be stored and used to feed more people. People therefore stopped needing to migrate for food and therefore settled into permanent settlements.
Answer: A) A. He wanted Vice President Arthur, a Stalwart, to take office.
President Garfield was a reformer who was against the Patronage Spoils System (a system that allowed you to get a job in the government even if you were not qualified).
Guiteau supported the Patronage spoils system, therefore he wanted a Stalwart to be President so the patronage spoils system would not be abolished.
I believe the answer is D. Hope this helps.