The ___________ design pattern is used to provide a unified interface to a set of interfaces in a subsystem.
- Adapter
- Decorator
- Facade
- Proxy
The correct option is "Facade." The Facade design pattern is utilized to provide a simplified interface to a larger body of code, such as a subsystem or a complex set of classes. It acts as a unified interface that hides the complexities of the subsystem and provides a simpler way for clients to interact with it. This pattern promotes loose coupling between subsystems and clients, enhancing the maintainability and scalability of the codebase.
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