Confucian education tended to support:
an open mind to different religions' traditions.
independent thinking and resistance to authority.
filial piety and submission to authority.
widespread literacy and popular fiction.

an open mind to different religions' traditions.

Explanation:

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."