Which of the following control procedures provides the greatest assurance that all donations to a not-for-profit organization are immediately deposited in its account? A. Perform periodic revews of the organization's cash receipts by tracing deposits to the original posting in the cash roceipts tecords. B. Require that all donations be mado by check. C. Require issuance of a contirmation receipt to all donors, with the receipt issued by the porson who cpens. and deposits the cash teceipts. D. Use a lockbox to recerve all donations