I agree with the person above - in B. Southeast Asia, child labor is the most prominent.
In countries such as Vietnam, Laos, Cambodia, Thailand, Myanmar, etc., child labor is almost a 'normal' thing - often, children are abused and made to work long hours in 'sweatshops' only to create something which will be sold at a low price, whereas they will be paid next to nothing.
What are the answer choices
Well after the civil war, the south was almost completely destroyed, the land, but also the government infrastructure. The North was very strict on the souths rebuilding, this was the time of "reconstruction" where northern troops basically told southerners what to do. Obviously this made the Confederates hate the North even more, they felt as if they were not in a "free" country at all.
Trade is what Teotihuacán’s power and wealth based on. Obsidian was one of the things that played a big role.
Hoping this will help