Bonnie Rye is solely responsible for collecting a patient's payment after medical services are rendered at Pepperdine Radiology. After receipt of payment from the insurance company, she has noticed that many billing statements sent to patients from the last two months are returned due to an incorrect address. Which financial policy will she need to train the front office staff on to reduce the number of billing statements being returned? a. Verify patient information b. Have flexible payment terms c. Granting of discounts d. Billing accounts receivable