In the context of circle geometry, what is the significance of the radius point of the circle?
A) The radius point is the intersection of the circle with the x-axis.
B) The radius point is the point on the circumference that is the farthest from the center of the circle.
C) The radius point is the point from which the radius of the circle is measured.
D) The radius point is the midpoint of the chord that is perpendicular to the radius.