(a)   The mayor may remove a department head by giving the department head written notice of and the basis for such action. The removal shall become effective upon the vote of nine (9) members of the board of aldermen. The department head shall be given the opportunity to be heard prior to such vote.
   (b)   See Article III, Section 3.14 for the removal procedures for members of boards, commissions and committees.
   (c)   See Article III, Section 3.10 for removal of appointed city officers.