I am not 100% sure but I know it is not B. because I did the test myself but, he was a Southern Democrat so I personally would pick D. because that is the only one that seems fathomable.
The answer is c because tobacco is a cash crop
Well, you have to think about how this could have happened. A lot of cities and countries have all been hit by some sort of disease or natural disaster but do they both have them. I would say false, you have to understand that not only do they go under that they also suffer from economy losses and from political misunderstandings and troubles. So no, those would not be the only two common factors.
For PLATO:
Maya: Created hieroglyphic writing system
Developed the accurate calendar systems
Constructed Chichen Itza
Aztec: Built Tenochtitlan
Sustained 20mil population
Grew floating gardens