CCleaner is known for deleting which types of files?

The correct answer identifies that CCleaner is primarily known for deleting temporary files and web cache. This tool is designed to help optimize system performance by clearing out unnecessary files that accumulate on a computer. Temporary files are created by the operating system and various applications for short-term use, which can take up valuable disk space over time. The web cache, on the other hand, consists of saved copies of web pages and other content to speed up loading times for frequently visited sites, but these files can become outdated and consume storage without providing much benefit.

By focusing on these types of files, CCleaner helps improve system performance and maintain privacy by removing traces of online activity and other non-essential data. While other options mention various file types, they do not reflect the primary functions and purpose of CCleaner as accurately as the deletion of temporary files and web cache does.