When Discussing Acceptable Audit Risk (AAR) and the Audit Risk

When discussing acceptable audit risk (AAR) and the audit risk model, which one of the following statements is true?

A) AAR is objectively determined by the auditor.
B) The terms audit assurance, overall assurance or level of assurance are synonyms for AAR.
C) When the auditor decides on a lower acceptable audit risk, it means the auditor wants to be more certain that the financial statements are not materially misstated.
D) AAR is the risk that the auditor is willing to take that the financial statements are fairly stated after the audit is completed and an unqualified opinion has been reached.