Management of a car washing bay has decided to automate its car washing business. The customer chooses the type of wash and notes the type of car. The system computes the fee and displays the amount due on a control panel. The customer can then pay for the car wash. After payment, if the wash is currently busy, the system indicates that the customer must wait. Otherwise, the system indicates that the customer should drive the car into the car wash bay. a) Develop a set of use cases (Use Case Diagram) for the operation of the washing bay. [3 marks] b) Draw a sequence diagram for the above description. (7 marks]