Final answer:
Ad-blocking software is the correct answer; it is installed in a user's browser to prevent ads from displaying, leading to a cleaner and faster browsing experience.
Step-by-step explanation:
The type of software that can be installed in an individual's web browser to prevent ads from displaying is b. ad blocking. Ad-blocking software, or ad blockers, are tools that remove or alter advertising content on a webpage.
When a user installs an ad blocker, it typically functions as a browser extension that prevents the browser from loading certain types of content, such as banner ads, pop-ups, and video ads. This can lead to a cleaner browsing experience, faster loading times for web pages, and reduced data usage.