Which of the following is true regarding CCTV?
A . CCTVs reduce the amount of security personnel assigned to monitor entrances and exits.
B . CCTVs are effective for control of personnel at entrances.
C . CCTVs can be used as a psychological deterrent.
D . CCTVs are equipped with pan/tilt/zoom and digital recording features.
E . Both a and b.
F . All of the above.
Answer: F