An alarm system that uses a sound- or light-generating device, such as a bell or strobe lights, located on the exterior wall of the protective area to call attention to a violation is known as a(n):

An alarm system that uses a sound- or light-generating device, such as a bell or strobe lights, located on the exterior wall of the protective area to call attention to a violation is known as a(n):
A . Intruder alarm
B . Local alarm
C . Direct alarm
D . Proprietary alarm
E . Central station alarm

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Answer: B