1.What major events happened between the Missouri Compromise and the Compromise of 1850? 2.Do you think the Compromise of 1850 was more fair to those who were pro-slavery or those who were anti-slavery? Why?
3.When we say that the new territories would decide the issues through “popular sovereignty”, what does that mean?

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; how about carl lewis;

answer; not notated (at least, not in the traditional sense) and includes many improvised sections and solos;