I would say B but I may be wrong
The correct answer is Mexico.
Because of Mexico and their gulf of Mexico, the United States cannot control the entire gulf area. If the area changed hands and went to the United States, they could unite the two gulfs and have a huge control over the land and the ports in the new world. However, that's probably never going to happen so it stays this way for now.
B, the invention of techniques for farming and animal herding
Answer:
Britain, France, Russia (USSR), and the United States
Explanation:
break-up the governments and communal lands in Indian Territory of the Five Civilized Tribes. & <span>to bring in the concept of individual land holdings.</span><span>
Hope this helps!(: </span>
