The action of the supreme court in regards to job quotas has been to
a. uphold all quotas
b. affirm that race is the only factor in making affirmative action decisions
c. uphold quotas when they overcome effects of a long-standing biases
d. deny the use of all quotas because they take rights away from people who are equally or more qualified for certain positions

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; form new memories;

answer; models;