They did not like the idea at all. They wanted land period. The fact that the United States wanted their country to streach from coast to coast and that this land belonged to them anyway (according to manifest destiny) ment that Mexico would have to give up their claims or go to war for that land.
The answer is the Tigris and the Euphrates rivers. Mesopotamia is known as "the land between 2 rivers" Hope this helps!
The route he took is the second option.
The blue dot in the picture that I included is the correct answer.
Hope this helped. Have a great day.~
Tropical climate receives the most solar energy