I would say A only because it says the societies meaning the people, not the actual area like what kind of new people settled there after the slaves were taken. Second, C doesn't make sense because the only technology that came to be was in the North and that was when slavery was being taken care of. Lastly, D is correct but, slaves were still brought to the U.S. and if it devastated the population, there would be little to no slaves.
For number one, the answer is in question 2, that answer being Mao. Number 2 is true unfortunately, and number 3 is false, it was made up of middle school students who called themselves Mao's red guard which eventually was endorsed by Mao himself.
