Select from the option list provided one internal control activity that, if properly designed and implemented, could most likely assist a client in preventing or detecting each error or fraud below. A choice may be used once, more than once, or not at all. Possible errors and frauds Internal control activities 1. Customers' checks are received for less than the customers' full account balances, but the customers' full account balances are credited. 2. Customers' checks are misappropriated before being forwarded to the cashier for deposit. 3. Customers' checks are credited to incorrect customer accounts. 4. Different customer accounts are credited for the same cash receipt. 5. Customers' checks are properly credited to customer accounts and are properly deposited, but errors are made in recording receipts in the cash receipts journals. 6. Customers' checks are misappropriated after being forwarded to the cashier for deposit. 7. Invalid transactions granting credit for sales returns are recorded. 8. Customers' checks are properly credited in the accounts receivable ledger, but the total amount failed to be recorded in the general ledger. O Shipping clerks compare goods received from the warehouse with the details on the shipping documents. O Monthly statements are mailed to all customers with outstanding balances. O Shipping clerks compare goods received from the warehouse with approved sales orders. O Validated deposit slips are compared with the cashier's daily cash summaries. O Customer orders are compared with the inventory master file to determine whether items ordered are in stock. The accounts receivable ledger is periodically reconciled with the general ledger accounts receivable account. O Daily sales summaries are compared with control totals of invoices. O Total amounts posted to the accounts receivable ledger from remittance advices are compared with the validated bank deposit slip. O Sales invoices are compared with the master price file. O Customer orders are compared with an approved customer list. O Sales orders are prepared for each customer order. O Control amounts posted to the accounts receivable ledger are compared with control totals of invoices. O Sales invoices are compared with shipping documents and approved customer orders before invoices are mailed. O Prenumbered credit memos are used for granting credit for goods returned. O Goods returned for credit are approved by the supervisor of the Sales Department. Select an option below Remittance advices are separated from the checks in the mail room and forwarded to the Accounting Department O Shipping documents are matched with sales invoices when goods are shipped. 1 The cashier examines each check for proper endorsement. An employee other than the bookkeeper periodically prepares a bank reconciliation. O Approved sales orders are required for goods to be released from the warehouse. O Sales returns are approved by the same employee who issues receiving reports evidencing actual return of goods