What led Bradford to challenge the segregated bus system? She wanted to get arrested. She often objected to driver mistakes. She was tired of being treated unfairly.

which sentences ? that question is incomplete

answer; self_ disclosure;

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; provide for the common defense: