Part A: A credit card company sends its customers a two-part bill. Customers are asked to detach one part and return it as a remittance advice, along with the payment. This is an example of a. Batch control totals b. Tone at the top c. Written approval controls d. Turnaround document

Part B: Which of the following is true? a. It is better for mathematical calculations to be done by the AIS than a human b. Larger companies can usually achieve perfect systems of internal control c. It is not possible to maintain an audit trail in a computerized system d. Output controls are more important than input and processing controls because they relate to what gets sent to customers and vendors as opposed to being used for internal purposes