Which statements about plugins are true?

The statement indicating that plugins can be used to modify core portal behavior is true. In Liferay, plugins provide a powerful mechanism to extend the functionality and customize the behavior of the portal. This capability allows developers to create custom applications, enhance existing features, or change how the core functionalities work, which is essential for adapting the portal to meet specific business requirements.

Customizing core behavior might include creating new portlets, overriding service behaviors, or developing themes that sustain the unique branding of the organization's portal. This flexibility is one of the reasons why plugins are an integral part of Liferay's architecture, providing ways to tailor the platform for various use cases.

The assertion regarding all plugins being hot-deployable is not universally accurate, as certain changes or enhancements may require a restart for the full effect to take place. While many plugins support hot deployment, it does not apply to every plugin type.

While plugins do enable layout modifications, they are primarily associated with functionality rather than solely layout control, which is why that statement is more ambiguous. Additionally, while Liferay does support different types of plugins, saying there are exactly six does not capture the full extent of available plugin types and could lead to misunderstandings regarding Liferay's extensibility. Understanding these aspects of L