A student is learning about how forces act on a bridge. The task is to design a paper bridge as shown in the picture that can support the greatest number of pennies. The student must use these materials: one piece of copy paper four books (two on each side, 20 centimeters apart) up to 25 pennies The student places 10 pennies on the bridge, and it collapses. Select which parts of the design most likely need to be changed to improve the design of the bridge and which need to stay the same. Needs to be changedNeeds to stay the same The number of sheets of paper The number of sheets of paper and Needs to be changed The number of sheets of paper and Needs to stay the same The way the paper is folded The way the paper is folded and Needs to be changed The way the paper is folded and Needs to stay the same The number of books