Sec. 4. (a) Any of the following may prosecute a civil action for support of a parent:
(1) The parent.
(2) The township trustee.
(3) The department.
(4) The director of the division of family resources.
(5) The prosecuting attorney.
(b) Costs may not be taxed against:
(1) the prosecuting attorney;
(2) the department;
(3) the township trustee; or
(4) the director of the division of family resources.