From what I can recall, the Adams-Onis Treaty more or less gave Florida to the U.S. but it did not exactly end the Second Seminole War, which can be made obvious with the fact that there are Seminoles still living in Florida. I don't remember the Treaty having anything to do with the British since this treaty was between Spain and the U.S.
Basically, I believe the answer is B.
During which time? This is not made clear
Answer:
The Treaty of Tordesillas was agreed upon by the Spanish and the Portuguese to clear up confusion on newly claimed land in the New World.
Explanation:
It was to establish a boundary
The Treaty of Tordesillas neatly divided the “New World” of the Americas between the two superpowers. ... All lands west of that line were claimed by Spain.