Celeste is trying to learn the series of steps involved in a lengthy procedure she needs to use in chemistry class. she takes the first letter of a keyword in each step and puts the combination of letters together to form a contrived word she can remember. what process is celeste using to remember the steps?

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."

where are the choices