How Does a Man-In-The Middle Trap Create Another Level of Security

Multiple Choice

How does a man-in-the middle trap create another level of security?

A) The man-in-the middle trap forces users to spend time in the trap before entering the data center, so only those who really need in will enter.
B) The man-in-the middle trap allows only one person to be between two doors, each with security measures, at a time.
C) The man-in-the middle trap will not allow a person to exit if they do not have the verbal passcode to enter the data center.
D) The man-in-the middle trap allows data center employees to trap intruders using trapdoors in the raised floor.