What was the case of Worcester v. Georgia about? a dispute between Georgia and the town of Worcester
a dispute over federal government tariffs
a Supreme Court decision about Native American rights
a Supreme Court decision about the statehood of Georgia

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; membership group;

answer; the natural law school;

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