Which of the following services performed by the auditor is not classified as an operational audit? O A. The auditor evaluates the promptness of materials inspection in a manufacturer's receiving department 8. The auditor assesses whether the sales personnel conduct sales to customers according to the industry's prescribed quality standards O c. The auditor evaluates a companys payroll processing for economy according to the predetermined budget. D. None of the above. A Moving to another question will save this response