01 Why is a thumbnail sketch useful in space planning?
Answer and explanation
Correct answer: A. To check object placement and empty space before the final drawing
Explanation: A thumbnail sketch is a small, quick study used before developing the final artwork. It lets the artist test the location and relative size of major objects, the balance of positive and negative space, and the likely focal area without spending much time on detail. Thus option A is correct. It is not intended to calculate paper price, stop drawing, or erase colour; its purpose is early planning and revision.