Which of the following components of an all-in-one security appliance would MOST likely be configured in order to restrict access to peer-to-peer file sharing websites?

Which of the following components of an all-in-one security appliance would MOST likely be
configured in order to restrict access to peer-to-peer file sharing websites?

A.
Spam filter

B.
URL filter

C.
Content inspection

D.
Malware inspection