Why was the south basically a self-sufficient society

Which of the following is an example of one of the successes of the marshall plan? a. a few eastern european countries decided to turn to democracy. b. western european economies were stronger than they had been before wwii. c. borders between western and eastern european countries shifted. d. eastern european countries eventually took part in the plan. ( answer in the format above so i can understand)

What is a human capital and what is one important way you can invest in your own human capital?

What was the role of each class in aztec society?