Question

according to the selection, why are some people afraid to step off the edge of a virtual cliff?
a their bodies tense up so they cannot move.
b it feels like they are in an experiment.
c part of their brain believes they will fall.
d they may slide on the slick floor.

Explanation:

To determine why some people are afraid to step off the edge of a virtual cliff, we analyze the options. Option C suggests that part of their brain believes they will fall. This relates to how the brain processes perceived risks, even in a virtual environment, triggering a fear response as if the fall were real. Other options: A (tense bodies) is a reaction, not the cause of fear; B (feeling in an experiment) doesn't explain the fear of falling; D (slick floor) is unrelated to a virtual cliff’s edge.

Answer:

C. Part of their brain believes they will fall.