.Which of the following BEST characterizes a mantrap or deadman door, which is used as a deterrent
control for the vulnerability of piggybacking?
A.
A monitored double-doorway entry system
B.
A monitored turnstile entry system
C.
A monitored doorway entry system
D.
A one-way door that does not allow exit after entry
Explanation:
A monitored double-doorway entry system, also referred to as a mantrap or deadman door, is used
as a deterrent control for the vulnerability of piggybacking.