Chester A. Arthur
The son of a Baptist preacher who had emigrated from northern Ireland, Chester A. Arthur was America's 21st President (1881-85), succeeding President James Garfield upon his assassination.
Because for example if you owned 16 slaves, they could do more work for you. So if they picked lots of cotton for you, you'd have lots to sell. And lots to sell equals more profit.
Basically a simpler way of saying it is the more people you have for you that are working for you, you'll be able to produce more product which equals more money.
Because those that knew the trade and worked hard for the job often did not get the job unless they knew someone. And sometimes people in the spoil system did not know how do their job. It wasn't merit based. Like is someone worked their whole life to be a doctor and a high school graduate becomes a doctor because they knew a friend who could hire them.
The answer to that question would be (D) Veto constitutional amendments that have been approved by the states
The two main reasons why the Cape Canaveral air force station is so important to its region is because A) it attracts some of the finest and smartest minds in the country, and B) Cape Canaveral itself brings in a lot of tourist revenue.