01 Where is the darkest part of a cast shadow often found?
Answer and explanation
Correct answer: D. Near the object's contact point
Explanation: The governing concept is contact shadow: the part of a cast shadow closest to the object receives the least reflected light and is often the darkest. Therefore, option D is correct. The shadow usually becomes softer and lighter as it extends away from the object. The other options do not describe the usual darkest location; the light source generally illuminates rather than darkens the nearby area. In drawing, strengthen the contact point while keeping the outer edge softer.