Oscar gets drunk at a party and starts arguing with one of the other guests that death penalty is better than capital punishment. The other guest holds a contrasting view about the topic. They get into a heated argument. Oscar gets angry and shoves the other person to injure him. In the context of psychology, this scenario illustrates .

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."

answersuch behavior is a result of/deindividuation;

answertime between the cs and us;