Which of the following statements is TRUE about what happens to the mass and melting point of the ball of wax after the piece is removed? A. Both the mass and melting point of the ball of wax change B. Both the mass and melting point of the ball of wax stay the same C. The mass of the ball of wax changes, and its melting point stays the same D. The melting point of the ball of wax changes, and its mass stays the same