An enterprise recently moved to a new office and the new neighborhood is a little risky. The CEO wants to monitor the physical perimeter and the entrance doors 24 hours. What is the best option to do this job?


A. Use fences in the entrance doors.
B. Install a CCTV with cameras pointing to the entrance doors and the street.
C. Use an IDS in the entrance doors and install some of them near the corners.
D. Use lights in all the entrance doors and along the company's perimeter.