Q. No.3: [Total Marks 15] Study the following real world electrical appliances using object-oriented programming approach (e.g. What are the relationships between them? Can you exploit the inheritance between any of them? What are the polymorphic methods? Are there any abstract classes? If so what are the abstract methods? etc.). O . > Electrical Appliances Audio Hi-fi Radio Walkman o Refrigeration Fridge Freezer o Telephone Fixed Cordless Cellular All electrical appliances have a turnOn and turnOff method. All audio appliances have an adjustVolume method. All refrigeration appliances have an adjustTemperature method. All telephones that have a dial and hangup method