The terms of the adams-onís treaty in 1819 were made official when foreign minister luis de onís and us secretary signed the treaty.
a.
john adams
b.
john quincy adams
c.
james adams
d.
george c. adams

Option B

Explanation:

John Quincy Adams, is the correct answer.

John Quincy Adams was the US Secretary of the state who negotiated The Adams- Onis Treaty between the US and Spain. The treaty was signed in February 1819. The main motive of the treaty was the acquisition of Florida by the United States and also about the establishment of the boundary between the Spanish and US territory. With this treaty, Spain gave East and West Florida to the US.