Which of the following controls would be the most effective in the misappropriation of accounts receivable cash receipts?

A. Segregate duties so that the bookkeeper in charge of the general ledger has no access to incoming mail.

B. Segregate duties so that no employee has access to both checks from customers and currency from daily cash receipts.

C. Have customers send payments directly to the company's bank.

D. Request that customers' payment checks be sent directly to the chief financial officer.