Venya and kari own a flower shop that specializes in custom bouquets. wanting to expand into selling potted plants, they create a production possibility chart to asses whether the potted plants are a good idea. study their chart: how many potted plants should they be able to produce on day 3? (a. 25) (b. 30) (c.50) (d.75)

The correct answer is C. 50.

The question and the answer have to do with opportunity cost. The opportunity cost in terms of macroeconomy refers to make a particular choice in which is the value of the most valuable choice out of those that were not taken in the options given. So,  the option on day 3 is 50 potted plants that they should be able to produce.

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."