How does scarcity affect people's economic decisions? A. it stops them from paying opportunity cost.

B. it pressures them to support command economies.

C. it stops them from fulfilling all of
their wants.

D. it forces them to pay high prices for goods.

answer; negative punishment;

you should think about the answers you give and expect the same form your questions.

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."