According to vygotsky, guided participation requires that a child

Guided participation is being defined as a process by which a person is being helped by a person who is experienced to a particular practice or thing so that the person with less experience will gain knowledge and to know what he or she doesn't know of. If this set as an example to a child, through guided participation, the child should interact with a mentor so that the child would be able to accomplish the task that he or she isn't familiar with.

answer; bonds; i believe this is the correct answer good luck

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."