How are Bootstrap's JavaScript components triggered?

Bootstrap's JavaScript components are able to function properly when both jQuery and Bootstrap's own JavaScript files are included in the project. jQuery serves as a dependency for Bootstrap's JavaScript components, allowing for more complex interactions and dynamic behaviors to be applied to elements in the HTML. When these files are included, the components such as modals, dropdowns, alerts, and carousels can be activated through specific class names or attributes defined in the HTML.

Choosing this option highlights the importance of having the required libraries in place for the components to work as intended. This setup is essential for enabling functionalities that rely on JavaScript, enhancing user experience through responsive features.

The other choices do not accurately capture how Bootstrap's JavaScript components are triggered. Custom JavaScript functions can be used to manipulate components, but they do not trigger Bootstrap functionalities without the required libraries. Modifying HTML attributes can enable features, but it typically requires jQuery to handle events or actions that the components respond to. Lastly, inline styles are related to CSS and do not influence the triggering of JavaScript behaviors in Bootstrap.