Which statement is a hypothesis these students might be using in their experiment?
A. If a toy car is rolled down ramps of different steepness, it will roll
fastest on the steepest ramp.
B. This experiment tests how the speed of a toy car changes with the
steepness of the ramp.
C. Will a toy car roll faster down a steeper ramp?
D. It's fun to see how fast the cars roll down the steepest ramps.