The amount of a certain product sold to a certain customer in a past period can be obtained from the

A. Customer selling B. Market research C. Customer buying D. Consumer behaviour

A. Production Planning and Control B. Production C. Inventory control D. All of the above

A. Minimum Investment in work in progress B. Better Production Control C. Early detection of mistakes or badly produced items D. All of the above

A. to differentiate the product B. to charge differential price C. to sell the product in different countries D. to give attractive name to a product