Which one of the following situations would be considered to be a perceptive system?
A. A plastic toy that can record a child's voice, make noise, and walk around.
B. A robot that can detect your voice and face and can differentiate between different surface types
C. A drone that can fly around and avoid obstacles in its way
D. A vacuum robot that can navigate by itself, learn about its surroundings and return to a charger by itself