Which is the best example of a response to an external stimulus?

A) drinking water after a long run
B) avoiding the sun by looking for food at night
C) a hungry bear hunting for food
D) falling asleep in the treetops of a forest

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain.