(Choose 1 answer)
In the perspective of inclined picture plane, what is the central visual ray's position?
A. The central visual ray passes through the eyes of the viewer and parallel to the ground plane
B. The central visual ray passes through the viewer's eyes and is perpendicular to the ground plane
C. The central visual ray passes through the viewer's eyes and is perpendicular to the picture plane
D. The central visual ray passes through the eyes of the viewer and parallel to the picture plane
