Which of the following tools is used to block email, Instant Message, Web site, or other media if inappropriate words such as pornography, violence etc. is used?

'iProtect' is not the correct product name - the actual content filtering application is named iProtectYou.

'Reveal' is not a recognized content filtering or parental control tool matching this description.

iProtectYou Pro is a third-party parental control application that monitors and filters content across multiple communication channels including web browsers, instant messaging clients, and email. It uses keyword-based filtering to block access to material containing inappropriate terms related to violence, adult content, and other configurable categories.

The Child Exploitation Tracking System (CETS) is a law enforcement investigation platform used by police agencies to track offenders, not a content filtering tool for end users.