Which of the following objects is used to get information about the user's browser?

The navigator object is specifically designed to provide information about the browser that a user is currently using. It contains properties and methods that allow developers to retrieve details such as the browser name, version, user agent string, and platform. This can be valuable for making decisions in code based on the browser's capabilities or for providing tailored experiences depending on the user's environment.

For example, using the navigator object, a developer can check if certain features are supported by the user's browser and adapt the web application accordingly. This object is built into the global window object, making it readily accessible in JavaScript without needing to instantiate it.

In contrast, the window object refers to the browser's window and acts as the global context for JavaScript execution but doesn't provide direct information about the browser itself. The document object represents the web page currently loaded in the window, enabling manipulation of HTML elements. The history object, on the other hand, provides access to the browser's session history, allowing developers to navigate between pages but does not provide browser information. Thus, the navigator object is the most suitable choice for obtaining details about the user's browser.