The Accounts Receivable Clerk Destroys All Invoices for Sales Made

Multiple Choice

The accounts receivable clerk destroys all invoices for sales made to family and friends and does not record the sales in the accounts receivable subsidiary ledgers.The family and friends usually give the clerk cash as a "thank you." Which procedure will not prevent or detect this fraud?

A) Send monthly statements to all customers with balances owed.
B) Reconcile sales invoices in the billing department to the total debits to accounts receivable subsidiary ledgers.
C) Sequentially prenumber all invoices and prepare a sequence check at the end of each day.
D) Reconcile the accounts receivable control account to the accounts receivable subsidiary ledger.