Which of the following statements is correct concerning an auditor's use of the work of an auditor's specialist? If the specialist has a relationship with the client, the auditor may not use the work of the specialist as audit evidence. O The client must approve the auditor using the work of the specialist as audit evidence. O The auditor should evaluate the adequacy of the specialist's work. O An unresolved disagreement between the auditor and the specialist may result in a qualified or adverse opinion on the financial statements