What does an Event Handler typically allow in programming?

An Event Handler is a fundamental concept in programming, particularly in graphical user interface (GUI) development or web applications. It enables the program to respond to various events caused by user interactions, such as mouse clicks, keyboard input, or other actions like form submissions. When an event occurs, the event handler is triggered and executes a specific piece of code associated with that event.

This mechanism allows for an interactive experience, as the software can dynamically respond to user actions, creating a more engaging and responsive application. For example, in a web application, clicking a button may invoke an event handler that processes user input or updates the user interface accordingly.

In contrast, the other options do not accurately describe the primary role of an event handler. Real-time data processing involves managing data as it comes in, which requires different constructs and is not solely reliant on event handling. Execution of multiple threads pertains to concurrent programming and managing multiple operations simultaneously, which is also distinct from the specific function of event handlers. Static page rendering refers to generating web content that doesn't change in response to user interactions, further differentiating it from the interactive nature that event handlers provide.