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.
Answer:
I'm sure it's (b) ✌hope this helped ya out
John Calhoun argued that the 1828 tariff helped the North at the expense of the South (c). This was the case because the tariff bolstered Northerner industrial markets but required Southerners to pay more for manufactured good.