Parker has just been named employee of the month at the grocery store where she works and is delighted. coincidentally, her younger brother, marty, decides to ask her for $20 so he can take his girlfriend to the movies. compared to any other day, parker would be likely to comply with his request today, because compliance.

    More; Positive mood increases compliance.

Explanation:  If Marty had asked for $ 20 for a movie with his girlfriend any other day, he would have put more effort into it than the day Parker was named Employee of the Month, because of positive feeling and happiness, compliance increased. It is even greater compliance than Parker is in a neutral mood, therefore everyday, as usual. Of course the compliance would have been even less if Parker had received this request from her brother when she was in a negative mood.

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."