in addition to working with law enforcement partners to sanction companies and individuals who violate the law, the oig also commits substantial resources to promote voluntary compliance by the healthcare industry. in what form do they provide guidance to the healthcare industry? a. advisory opinions, special fraud alerts special advisory bulletins, free hotline service for non-exempt employees b. advisory opinions, special fraud alerts, special advisory bulletins, legal counsel c. advisory opinions, special fraud alerts, special advisory bulletins, iro selection d. advisory opinions, special fraud alerts, special advisory bulletins, compliance program guidance