A lot of people try to minimize the colonist decision to enslave African peoples by saying that Africans used slavery of other Africans. Explain why this is problematic. Was African slavery like slavery in what becomes the United States?

you should try adrenaline. it kicks in in situations like this.

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; the automatic system because it is a "gut reactor"  

answer; under developed;