Demonstrating a complex understanding Identify two ways of demonstrating a complex understanding of the argument. Then explain which method you are using to earn this point. (1 points)

the first one is d and the second a

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 cats meowing will temporarily increase, but then it will decrease;