What Bootstrap class is typically used to align elements horizontally in a navigation bar?

The choice that is most suitable for aligning elements horizontally in a navigation bar is the option that includes the class "navbar-nav." This class is part of Bootstrap's navigation component and is specifically designed to create a list of navigation links that are horizontally aligned within a navigation bar.

When using "navbar-nav," Bootstrap applies specific styles that make the list items display in a row, ensuring that they take up space appropriately and provide a clean, organized layout for navigation links. This is essential for achieving a visually appealing and user-friendly navigation experience.

In contrast, while the class "navbar" establishes the framework for the navigation components and the class "nav" can also be used to create a vertical or horizontal navigation list, they do not inherently provide the horizontal alignment that "navbar-nav" does within the context of Bootstrap's navbar component. The option with "nav-container" is not a standard Bootstrap class, hence it wouldn't serve the intended purpose for aligning items in a navigation bar.