Which of the following is the most effective audit procedure for the existence of unrecorded liabilities? Multiple Choice Examine unusual relationships between monthly accounts payable and recorded purchases. Examine unusue Examine confirmation requests returned by creditors whose accounts are on a subsidiary trial balance of accounts payable. Examine a sample of invoices a few days prior to and subsequent to the year-end to ascertain whether they have been properly recorded. Examine a sample of cash disbursements in the period subsequent to year-end