The correct answer to this question is letter "b. emotional regulation." A 5 year-old might stop herself from hitting another child, because she has developed <span>emotional regulation. He or she knows what is the feeling of to being hurt or being loved.</span>
C is the answer, southern plantation owners used slaves to do free labor, by removing them they would have to hire a worker and lose money, so they did not support freeing the slaves.
Dams use hydroelectricity to power towns and cities, so I would go with B) provide power
