You have been asked to design the architecture for a washing machine simulator. There are four types of machines can wash clothes based on a setting selected by a user. A basic washer allows only soap powder to be added. A premium washer only allows liquid soap to be added. A deluxe washer uses only liquid soap but also allows fabric softener to be added and dispensed. A smart washer alerts the user when the wash cycle is finished via a message. (a) Explain the problem with having the interface shown below, to specify the behaviour for the four types public interface WashingMachinet boolean wash int setting) void addLiquidSoap LiquidSoap ls); void addFabricSoftener(FabricSoftener fs