FFL's purchasing process requires all purchases be approved by departmental managers. Suppliers are requested to send invoices directly to the FFL employee who requested the purchase. This process often delays the payment of invoices, requiring accounts payable clerks to chase employees for submission of approved invoices for payment.

Based on the situation, in auditing, what's (a) the explanation of risk, (b)account that's affected, (c) assertion , (d) Test of detail