b. If an independent audit leading to an opinion on financial statements causes the audtor to believe that a material due to traud exists, the audtor should lirst O 1. request that management investigate to determine whether fraud has actually occurred O 2. make the investigation necessary to determine whether fraud has actually occurred O 3. consider the implications for other aspects of the audit and discuss the matter with the appropriate kevels of O 4 consider whether fraud was the result of a tailure by employees to comply with exsing contros