Thinking back on what you have learned in this course, discuss the single most interesting or surprising thing you learned, as well as what made it so. if you were to speak with a friend considering taking this course, describe how would you "sell" it to him or her. explain your rationale.

all you have to do is look at the pictures to find hope this is the lesson you were also hope this .

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )

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."