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Which statement about the Lightning Components framework is correct?

  1. It uses JavaScript on the client side and Apex on the server side.

  2. It uses events to communicate data between components.

  3. It employs a stateful client and stateless server architecture.

  4. All of the above.

The correct answer is: All of the above.

The correct answer encompasses all the provided statements about the Lightning Components framework, confirming that each statement accurately describes an aspect of the framework's design and functionality. The first statement highlights that Lightning Components utilize JavaScript for client-side operations, enabling dynamic and responsive user interfaces, while Apex is employed on the server side to handle data operations and business logic within Salesforce. This separation allows developers to enhance the user experience by leveraging JavaScript’s capabilities in the browser while ensuring secure data processing via Apex. The second statement points out that communication between components is facilitated through events. This event-driven architecture allows components to interact and respond to various actions and state changes, fostering a modular design where components can remain decoupled, yet still effectively communicate with one another. This is integral to building scalable applications in the Lightning framework. The third statement introduces the architectural design of the framework, which is characterized by a stateful client and a stateless server. This means that the client (where Lightning Components run) maintains the state of user interactions, while the server (delivering Apex services) does not maintain any session state between requests. This model optimizes performance and scalability, as stateless servers can handle a higher load without the overhead of maintaining session information. Therefore, given that all