I am 100% sure its B. Phoenician got it correct on the exam.
The correct answers is option:
<u>C. A Highland basin.</u>
Is the Highland Plateau located in the now occupied by Mexico City.
Also know as the Anahuac Valley and commonly confused with the Mexico Basin it is a geographic region that is located in the Southern center of the Mexican Republic. Originally it was a endorheic basin that housed the Lakes Texcoco, Xochimilco and Chalco
Answer:
The Cold War between the U.S. and Soviet Union originated from postwar disagreements, conflicting ideologies, and fears of expansionism. At both the Yalta Conference and Potsdam Conference, U.S. and Soviet leaders sharply disagreed over the future of the post-war world.

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The Cold War | Boundless US History
got it from ^
they died because they wasn't immune to it
The last straw that ended the Roman Empire for good were Barbarian groups attacking them and their land.