正解:A
Private browsing is a feature available in most modern web browsers that allows users to surf the internet without storing web history, cookies, site data, or form information. This mode prevents the browser from keeping track of user activity, thus aiding in maintaining privacy and reducing digital footprints.
References:The utility and application of private browsing are discussed in the "Internet Services" section of CompTIA IT Fundamentals documentation, outlining its role in maintaining user privacy.