Hi
The answer is : Mexicans Cession
The answer is D.
(Edited to combat confusion)
The other name for West Bank is Cisjordan:the name refers to the fact that it's a Bank of Jordan - the correct answer is D, the one that mentions the Jordan River.
The Dead Sea is South of the Jordan River.
On the other side of the Jordan and the Dead Sea is Jordan, the country.
Does the map scale have distances on it or is it a different scale.
It most likely shows distances so I would go with C.
Im not sure but probably.