C I believe is the answer your looking for
whereyamomat?!?!?!?!?!??!?!?!?!??!?!?!?!??!?!?!
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.
The purpose of the Democratic National Convention of 1968 was to <em>find a new presidential candidate for the Democratic Party</em>, as President Lyndon B. Johnson had announced he would not seek reelection. Finally, Vice President Hubert H. Humphrey and Senator Edmund S. Muskie were selected as the new President and Vice President, respectively.