Which of the Following Definitions Represents Physical Security

Multiple Choice

Which of the following definitions represents physical security?

A) A problem that occurs when someone registers purposely misspelled variations of well-known domain names.
B) Tangible protection such as alarms, guards, fireproof doors, fences, and vaults.
C) Government attempts to control Internet traffic, thus preventing some material from being viewed by a country's citizens.
D) Choosing to deny permission to incoming emails.