Ove stop is a hotel company located at UK. You are supposed to analyse the requirements of their new system that is described as online booking system. This system should allow their customers to perform booking, receptionist to check customer booking and retrieve booking details, and manager to request monthly reports and add rooms. The hotel system should return checking results to receptionist, confirms booking to customer and provide reports to the manager. For booking a room, the customer inserts all booking details that involve customer personal details (first name, last name, and email), number of rooms, check in and check out dates. The system shall confirm the booking to the customer by booking reference number. The receptionist uses customer information to retrieve room booking details. Manager inserts the monthly requested details regarding rooms and customers, then the system will be able to generate reports after retrieving required information. The customer can make payment by inserting payment details, where the system validates the payment externally from external banking system, that validates the payment to the hotel online system. Study the aforementioned scenario, then answer the questions below: 1- Design a class diagram that represents the following: (6 marks) (Rooms/ Customer/Manager/ Receptionist/ Booking) a. Assume having three types of rooms. Single, Double and Family. Design your class diagram in a way that: Allow a customer to book a room. Allow manger to add new type of room and manage bookings. And allow receptionist to check bookings and retrieve bookings details. b. In your design in part (a), what two SOLID principles have you addressed mainly