In a purchase application, you allow customers to create purchase requests. Each purchase request contains a list of line items. Each line item holds the product identifier, quantity, and price. If…

In a purchase application, you allow customers to create purchase requests. Each purchase request contains a list of line items. Each line item holds the product identifier, quantity, and price. If a product is not in stock the application creates a purchase order. The purchase order is processed by the purchasing team. Which two entities would you model as case types? (Choose two.)