Doorways with automatic locks can be configured to be fail-secure or fail-safe. Which of the following best describes the difference of the two?

A.
A fail-safe setting means that if a power disruption occurs that affects the automated locking system, the doors default to being unlocked.

B.
A fail-secure setting means that if a power disruption occurs that affects the automated locking system, the doors default to being unlocked.

C.
A fail-safe configuration means that the doors default to being locked if there are any problems with the power.

D.
A fail-secure setting means that if a power disruption occurs that affects the manual locking system, the doors default to being unlocked.

Explanation:
A fail-safe setting means that if a power disruption occurs that affects
the automated locking system, the doors default to being unlocked. Fail-safe deals
directly with protecting people. If people work in an area and there is a fire or
the power is lost, it is not a good idea to lock them in. This would not make you
many friends. A fail-secure configuration means that the doors default to being
locked if there are any problems with the power.