Based on the circle shown above, the name of segment AC include the following: C. diameter.
In Mathematics and Euclidean Geometry, a circle refers to the set of all points in a plane that are located at a fixed distance (radius) from a fixed point.
Generally speaking, the diameter of a circle simply refers to a straight line that passes through the middle (center) to the other end of the circle, thereby, measuring the distance from one end point to another.
This ultimately implies that, the diameter of a circle is double the length of the radius of a circle;
Diameter = 2 × radius