What are the three major price controls being used today by the United States.

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; ///the above statement is (false);

stable food supply,social structure, government,religion,culture/art,technology and writing/language;

answer; a variety of simple organic compounds could be spontaneously synthesized from components in earths primitive atmosphere;