Final answer:
The correct physical control for preventing tailgating is a Mantrap (Option A). It secures an area by forcing individuals to pass through two interlocking doors, preventing unauthorized access by tailgating. The correct answer is option a.
Step-by-step explanation:
The physical control that helps prevent tailgating and can snare the intruder attempting to tailgate is a Mantrap. Mantraps are security devices that control two interlocking doors to a small space, with the first door needing to close before the second opens. This ensures that only one person can pass through at a time, effectively preventing tailgating where an unauthorized person attempts to follow closely behind an authorized user to gain entry into a secured area.
Surveillance devices, Intrusion Prevention Systems (IPS), and motion sensors are also used in security, but they do not directly prevent tailgating like a mantrap does. Surveillance devices like cameras can record the incident, IPS protect against cyber threats, and motion sensors could potentially alert to an intruder's presence, but they do not trap or physically prevent tailgating. Therefore, the correct option is A) Mantrap.