Which of the following are assurance engagements? A. Reviewing the processing of sales invoices to assess the efficiency of the process. B. Compiling financial statements with the issuance of a Notice to Reader report. OC. Preparing a tax return. N OD. Providing management consulting services and issuing a list of recommendations for improvements. E. Reviewing financial statements with the issuance of a review engagement report. OF. Review by the Workers' Compensation Board of wages and remittances of an entity to ensure required remittances are made properly. Most OG. Requesting a report to evaluate the effectiveness of the oversight of security operations at a provincial correctional institution