Which of the following is true regarding the audit report for an issuer? A. Reference should be made to both PCAOB standards and generally accepted auditing standards. B. PCAOB standards should not be mentioned at all, although their use is implied in the auditor's report. C. The report should include references to PCAOB standards and generally accepted accounting principles. D. Reference may be made to either PCAOB standards or generally accepted auditing standards