Help. Anything is appreciated.

Which of the following was a boundary established by the Adams-Onís Treaty?

A. The border between Louisiana and Texas was the west bank of the Sabine River.

B. The border between Louisiana and Texas was the Red River.

C. Spain's eastern border was the Sabine River.

D.Spain's eastern border was the Atlantic Ocean.

°.✩┈┈┈┈∘*┈┈୨♡୧┈┈*∘┈┈┈┈✩.°