The term involvement means the right or ability to participate, whether or not exercised, including by doing any of the following:

1. (a) Providing input into a final decision;
2. (b) Consulting with or providing advice to a decisionmaker;
3. (c) Exercising special approval or veto rights;
4. (d) Participating on a committee with decisionmaking authority; or
5. (e) Advising on the appointment officers or selecting employees who are engaged in substantive decisionmaking.