When such a difference is referred to a Board of Arbitration under Article 19, the Board of Arbitration shall have the power to:
(1) uphold the written warning(s) or suspension;
(2) rescind the written warning(s) or suspension;
(3) vary or modify the written warning(s) or suspension;
(4) order the Division to pay all or part of any loss of pay and/or benefits in respect of the written warning(s) or suspension;
(5) do one or more of the things set out in subclause (1) or (2), (3), (4) above.