The picture shows the success of the "post-shooting method" in sports photography. In the photographer's eyes, the clear skateboarder is still, while the blurred background is moving.

The "back shot method" is to track moving objects, which is considered static. In this picture, the moving skateboarder is regarded as still by the photographer and tracked by the lens, so the frame of reference is the skateboarder.

So c is right and ABD is wrong.

So choose: C.