What reason did rice/ sugar/ cotton/ tobacco plantation owners give to justify why they NEEDED slave labor? Because they were labor intensive crops
Because they knew how to run a large plantation
Because they wanted to give people an opportunity to move to to the New World
Because they were better at tending crops than indentured servants

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 trial de novo

answer; through play and social interaction;

answer; blank(1); /// the sea; blank (2); / a forest of pines;