(A) The director or designee may consolidate two or more eligible lists of the same classification by ranking eligibles named therein, according to their scores.
(B) At the discretion of the director or designee, persons qualifying on an examination for a given classification may be placed on eligible lists for one or more lower classifications in the same class series. The adoption of such additional placement shall be extended to all eligibles on the list
(C) Whenever in the judgment of the director or designee action is deemed advisable on account of errors or fraud in connection with any examination, a re-examination of applicants shall be ordered and the eligible list shall be amended in accordance with results of such re-examination. After an eligible list is prepared and posted it shall not be revoked except upon written notice of errors or fraud to all the eligibles. An appointment made from an eligible list shall be considered valid even if fraud or error is discovered after the appointment has been made, provided the person appointed was not involved in such fraud or error.