Which of the following is an attribute of the internal control procedure -assignment of responsibilities? O A. Each position has clearly assigned responsibilities O B. The company should separate the custody of assets from accounting O C. The external auditors will monitor internal controls. O D. To validate their accounting records, a company should have an audit by an external accountant Which of the following statements describes an invoice from a supplier? O A. It is a statement from the supplier showing the goods purchased and the amount due. O B. It is a report showing that the goods have been received in good condition, O C. It is an order to purchase goods from a supplier. O D. It is a document authorizing a payment to a supplier as ordered