8. Ana cuts the paper into different shapes, while Elsa uses paper in making a fire. Which of the following comparisons suits the situation? A. Ana and Elsa's paper both undergo a physical change. B. Ana and Elsa's paper both undergo chemical change. C. Ana's paper undergoes a physical change, while Elsa's paper undergoes a chemical change. D. Ana's paper undergoes a chemical change, while Elsa's paper undergoes a physical change.​