Jack is an audit intern assigned to the attestation engagement of Margo LLC, a medium-size firm and distributor of pearl necklaces and other fine jewelry. Jack has been tasked with testing controls over the sales and receivables cycles, and has decided to examine a sample of the client's invoices. Which of the following represent controls Jack might decide to test? Controls to ensure that sales invoices are recorded in the correct time period, and that interest accruals for related notes payable are accurate. Controls that ensure that invoices are matched with outgoing inventory shipments and the creation of a receivable. Controls to ensure that each invoice can be matched to a sales receipt and associated accounts payable entry. Controls to ensure that invoices are numerically accurate, and match the details contained in the customer and cash master lists