Line segment CD is not shown in the image, while the other options (Ray AC, Point B, Line BC) are all depicted. A line segment requires two distinct endpoints.
The answer is Line segment CD.
A line segment is a portion of a line that has two distinct end points. The image below shows a ray BC, which has one end point (B) and extends infinitely in one direction. There is no line segment CD in the image, as it does not have two distinct end points.
The other three options are all represented in the image:
Ray AC: A ray AC is shown in the image, starting at point A and extending infinitely in the direction of point C.
Point B: Point B is clearly shown in the image.
Line BC: Although line BC extends infinitely in both directions, it is still considered a line, not a ray.
Therefore, the only option that is not represented in the image is line segment CD.