To represent a point that is 10 units below 0 on a vertical number line, that point would be -10. On a horizontal number line, -10 is also represented as itself.
Since the options you've provided (Point A, Point B, Point C, Point D) do not have numerical values attached, I cannot determine which point corresponds to -10 without knowing the specific values of each point.
If you are able to provide the numerical values for Point A, Point B, Point C, and Point D, I'd be happy to help you identify which one represents -10.