What Can Be Exported from an Angular Module?

The exports array of an Angular module specifies the subset of declarations that should be visible and accessible to other modules. It's used to export modules, services, components, custom directives, and custom pipes.

Here's a breakdown of the correct and incorrect options:

• A. Only modules, services, components, custom directives, and custom pipes. This is the correct answer. The exports array can contain all of these elements.

• B. Only modules. This is incorrect. While modules can be exported, the exports array can also include other components like services, components, directives, and pipes.

• C. Only modules, components, custom directives, and custom pipes. This is incorrect. Services are also valid elements to export from a module.

• D. Only components, custom directives, and pipes. This is incorrect. Modules are also valid elements to export from a module.

Explanation:

The exports array is used to control the visibility and accessibility of components within your Angular application. By exporting these elements, you allow other modules to use them. This is crucial for building modular and maintainable Angular applications.