The option that best describes robot sentries is option B: robot sentries are robots that act as fire suppressors.
Teams of autonomous mobile security robots known as Sentry Bots can be easily incorporated into current security systems. These mobile security robots are energy independent due to their ability to recharge their batteries without human intervention. They can also navigate on their own.
Note that Once directed at a data source, a robot continuously collects the data in the same manner, never misplacing a decimal or transposing a number. And when instructed on how to calculate a metric, it uses the same inputs and computation techniques.
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