Which of the Following Procedures Performed for the Billing Function

Multiple Choice

Which of the following procedures performed for the billing function may provide evidence that the accounts receivable subsidiary ledger is in agreement with the accounts receivable control account?

A) Making sure that all shipments have been billed.
B) Making sure that no shipment has been billed more than twice.
C) Making sure that each shipment is billed at the correct amount.
D) Making sure that each shipment is billed to the proper customer.