An audit client selis 15 to 20 units of product annually. A largn portion of the arnnat lales: occur in the last month of the fiscal vear. Annual saies hive not materially charieced oven the past 5 years. Which of the following approaches would be most effective concerringe the timing of audit procedures for revenue? A. The auditor should perform analytical procedures at an interim date and dincass ant changes in the level of sales with senior management. B. The auditor should inspect transactions occurring in the last month of the freal yeas and . review the related sale contracts to determine that revenue was posted in the proper perion. c. The auditor should perform tests of controls at an interim date to obtain audit evidemce: about the operational effectiveness of internal controls over sales. D. The auditor should review period-end compensation to determine if bonuses were paiad to meet earnings goals. The auditor is required to retain audit documentation A. For a period to satisfy applicable legal or regulatory requirements. B. For as long as the client remains a client and continues to pary audit tees on a tirmebir basis, C. In perpetuity. D. For a period to be agreed upon in the engagement letter. 8 E D