Correct answer: B. Actual volume and different viewpoints
Explanation: Direct answer: B, actual volume and different viewpoints. A drawing is usually a two-dimensional representation on a flat surface, but a sculpture is a three-dimensional form that occupies real space. To study it properly, first observe its height, width, depth, and overall mass. Then examine how it looks from the front, sides, back, and, when possible, from above or below. Its balance, stability, proportions, and relationship with surrounding space also matter. As the viewer moves, the visible contours and overlaps change, so one viewpoint cannot show the whole form. A is not correct because printed colour is only one surface feature and may not be important in a sculpture. C describes drawing paper, not sculptural structure. D concerns lettering and gives no information about volume or balance. Memory cue: drawing is mainly seen on a surface; sculpture must be understood by moving around its volume.