You go to your favorite big box store; You buy a television and to pay, you submit a ticket with the model and UPC number preprinted on it to the cashier. After you pay, you go to the front desk where upon proof of payment (the receipt),you receive your TV. Why do they do this? Explain citing the controls involved.

PART B: At the grocery store, describe four preventive controls and four detective controls you think they SHOULD use. ( hint why does another person have to approve a price override by entering a code?)