A(n) is a legally binding order from the President to an agency under the authority of the executive branch.

1. senate

2.there is no diagram

3.education

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; curiosity;

answer; the values, beliefs, and assumptions about appropriate behavior that members of an organization share;