Arwan thinks that his classmate Jasmine is attractive. He invites her for coffee after class, and they discuss basic information, such as what they like to do and where they live. They spend more time together over a period of several months, and Arwan learns more personal information about Jasmine. He also gets to know what she is thinking or feeling simply by observing her nonverbal cues, such as the tone of her voice or her facial expressions. Arwan likes Jasmine more as he learns more about her. Which theory best represents Arwan's experience

it teaches readers about an interesting chinese custom and causes them to determine that the minister is trying to be polite

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."