When are local variables initialized when using load?

Local variables defined using the load function are initialized upon page load. This means that when a user accesses a particular interface, the variables are created and populated with any necessary data at that point in time. This ensures that the variables have the values required for the application to function properly before any user interactions take place. The initialization of these local variables enables the interface to operate smoothly, providing the necessary context and data for any components that rely on those variables during the initial rendering of the page.

The other options do not accurately capture the timing of local variable initialization. Data retrieval or user input does not trigger the initialization because that process occurs strictly when the page is loaded. Additionally, the compilation of code takes place prior to execution and is not related to the runtime initialization of local variables.