Which of the following is an example of human vigilance? 1 pointVigilant receptionistsMotion sensor lightsBiometric readersSurveillance cameras

Answering the Question

To determine which of the options represents an example of human vigilance, we need to understand the context of the term "human vigilance." Human vigilance refers to the active awareness and attentiveness of individuals to monitor, observe, and react to conditions or stimuli in their environment.

1. Vigilant Receptionists: Receptionists are typically human personnel who monitor incoming visitors, phone calls, and general security protocols in an office environment, displaying human vigilance.

2. Motion Sensor Lights: These are automated systems that detect movement and activate lighting but do not involve human input, hence they are not a demonstration of human vigilance.

3. Biometric Readers: This technology utilizes biological indicators (like fingerprints or retinal scans) to grant access but operates automatically without continuous human oversight.

4. Surveillance Cameras: While they capture and record events, they are mechanical devices and require human monitoring to ensure vigilance, but the cameras themselves do not represent human vigilance without the active observation.

Conclusion

Based on the definitions and roles of the listed options, the correct answer here is Vigilant Receptionists as it directly involves human awareness and monitoring of the environment.