After the passage of the Fugitive Slave Act, many free African Americans moved to California.
took jobs as railroad workers.
were enslaved in the South.
testified against slave hunters in court.

answer; i believe the correct answer is customer,manufacturer, service provider,general public ; quality is primarily the responsibility of all all employees in the organization.

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; mechanics;