Consider the following statements as you answer the question: i. Felix, a cash receipts clerk, applied Allison's payment to the invoices indicated on her remittance advice. ii. In purchasing books, Allison filled out a form on a bookstore's web site. ii. The bookstore's web site verified Allison's credit limit. iv. William, a warehouse worker, prepared Allison's books for shipment. The bookstore may need to complete the last step of the sales/collection process because: It took Allison's order online. It uses the open invoice method of processing receivables. It does not outsource credit approval to a third party. It has inadequate separation of duties