Which functionalities do Widgets provide in Liferay?

Widgets in Liferay are designed to enhance web pages by providing interactive features that allow users to engage with content dynamically. They are essentially reusable components that can be placed on a page, offering functionalities such as displaying information, gathering user input, or integrating with other services. This interactivity contributes significantly to improving user experience on a website, making it more engaging and user-friendly.

When considering the other options, database management tools are not a function of widgets; rather, they are typically handled by different administrative features within Liferay. User authentication is also a separate functionality that involves security measures and user session management, which goes beyond the scope of simple widget operations. Lastly, while widgets can interact with external services, they are not exclusively for that purpose, as their primary role is to enhance interactivity on the web pages themselves. Thus, the assertion that widgets offer interactive features for web pages best encapsulates their core functionality within Liferay.