An auditor has completed an audit of a public company in accordance with the auditing standards of the PCAOB, and is preparing to issue an unqualified opinion on those financial statements, in addition to and separate from the required audit report on the effectiveness of internal control, as the auditor is permitted to do. In the audit opinion on the fairness of the financial statements, the auditor should

add an explanatory paragraph to opinion on the financial statements section referring to the audit of the effectiveness of internal control.

add an explanatory paragraph to the basis for opinion section that refers to the audit of the effectiveness of internal control.

modify the introductory sentence in the first section of the audit report to refer to the audit of the effectiveness of internal control.

not refer to the audit of the effectiveness of internal control.