What types of information can web browsers cache?

Web browsers cache a variety of types of information to enhance the user experience and improve the efficiency of web browsing. The correct choice highlights that browsers can store website preferences, images, and site data.

Caching website preferences allows browsers to remember your settings, such as language or display options, making the return experience more personalized and streamlined. Images are cached to reduce load times on subsequent visits—when you revisit a site, the browser can load these graphics from its cache rather than downloading them again from the web, resulting in faster access. Site data, which can include files such as JavaScript and CSS, is also cached to ensure that websites load quickly and efficiently without requiring repeated downloads.

The other choices highlight information types that browsers do not typically cache. User login details, while they may be remembered through passwords or autofill features, are not usually stored as cache because this poses security risks. Cached items typically consist of static resources rather than sensitive information like personal emails or messages, which are managed by specific email applications or services and not generally stored by web browsers for security and privacy reasons. Similarly, advertisements are not cached by browsers for efficiency; rather, they are dynamically generated to be relevant to the user during their browsing experience.