Which statement about the radius of a sphere is true?
A
The radius is a chord from one point on the surface of the sphere to another point on the surface of the sphere.B
The radius is a three-dimensional circle in which all points are equidistant from a fixed point.C
The radius is a line segment from the center point to the surface of the sphere.D
The radius is created from a plane that passes through the center of the sphere.