Stress-strain graphs for three different materials are shown; they are not plotted to the same scale. These materials are copper, rubber and glass. Which material corresponds to each graph?
- A1: copper, 2: glass, 3: rubber
- B1: copper, 2: rubber, 3: glass
- C1: glass, 2: copper, 3: rubber
- D1: glass, 2: rubber, 3: copper