In which drawing is the use of a cast shadow most necessary?

Correct answer: When showing a cup resting on a table

The correct answer is C: showing a cup resting on a table. A cast shadow is the shadow an object throws onto a nearby surface when light falls on it. In a drawing, it helps the viewer understand that the cup is in contact with the table rather than floating in empty space. It also gives information about the direction of light and helps establish the relationship between the object and its surroundings. A colour wheel is mainly concerned with colour relationships, so a cast shadow is not essential to its purpose. B focuses on writing letters, where a cast shadow is not normally needed to communicate the letters. D concerns an outline, which defines an edge but does not show how an object sits on a surface. Memory cue: cast shadow “anchors” an object. Do not confuse cast shadow with form shadow: form shadow lies on the object’s own surface, while cast shadow falls onto another surface.