A malicious person gained access to a datacenter by ripping the proximity badge reader off the
wall near the datacenter entrance. This caused the electronic locks on the datacenter door to
release because the:

A.
badge reader was improperly installed.

B.
system was designed to fail open for life-safety.

C.
system was installed in a fail closed configuration.

D.
system used magnetic locks and the locks became demagnetized.

Explanation:
It describes a design the lock to fail open for life safety, causing the door to stay open when power
is lost – in this case the proximity badge reader was ripped off the wall.