Which one of the following statements related to investigations of workplace harassment complaints under Ontario's OHSA is true? a) As a rule, such investigations should be completed with 120 days of the complaint O b) The alleged harasser should not be in a position of authority over the investigator O c) Only complaints, not mere rumours, of harassment should be investigated O The investigator's questions to witnesses should be kept vague so the identity of the parties remains confidential d)