The answer would be C
The spoils system is when a political party, after winning an election, gives jobs to its supporters.
https://www.britannica.com/topic/spoils-system
The correct answer is B) Jefferson Davis: the President of the Confederate States of America.
Jefferson Davis was the first and only president of the Confederate States of America. The Confederate States of America refers to the 7 states that left the Union after the election of 1860. Davis was made president just a few short months after the secession of these 7 states.
B. Florida became a U.S. territory
Sway potential voters to one candidate or another