A. The space between the objects and air. It helps you not get confuse on if the drawing is an item or just blank space.
B. Cut out:
The black paper helped me determine the negative space.
The dark area helped me determine the negative space.
C. It help an artist to see in negative space so the artist would get distracted by the empty space before the object itself.
D. Seeing in negative space enhance drawings because it make it seems more realistic.