A car rental company wants to develop an automated system that can handle car reservations, customer billing and car auctions. Usually, a customer reserves a car; picks it up and then returns it after a certain period of time. At the time of pickup, the customer has an option to buy or waive collision insurance on the car. When the car is returned, the customer receives a bill and pays the specified amount. The company also has corporate customers where they are not billed directly. For corporate customers, the organizations they work for will be billed and payments are made later. In addition to renting cars, every six months, the car rental company auctions the cards that have accumulated over 20,000 miles. Draw a use case diagram for capturing the requirements of the system. TIPS: Include an abstract use case to capture common behavior among any two use-cases. Use the relevant relationships to capture the requirements.