Task: Question Understanding
Input (English): Question: Sharpening a pencil and tearing paper are examples of physical changes. Which statement describes why these are physical changes? (A) There is a change in how the objects are used. (B) There is a change in the appearance of the objects. (C) There is a change in the materials from which the objects are made. (D) There is a change in both the appearance of the objects and the materials from which they are made.?
Output (English): Sharpening, pencil, tearing, paper, describes, physical, changes?