Answer:
C
Explanation:
When our ancestors were roaming the earth, they had a fear of the dark because they were unable to detect predators, and in which direction the danger is coming from.
This fear is most often seen in children, because as we get older we realize that there is nothing "in the dark" that can hurt us. However it is so embedded in our evolution that it is very difficult to be in a dark room without feeling a sense of fear.
