Brooke and her half-brother Colton were raised in an impoverished home, where they were often left home alone while both parents worked more than one minimum-wage job to support the family. Despite this upbringing, Brooke has developed into a happy, healthy adult, while Colton has developed into a depressed alcoholic. Even though they shared an upbringing, their different outcomes indicate that they had . Group of answer choices

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."

all of them? if not search it up