Students want to design an experiment to study gravity. They decide they will drop four objects with the same mass from the top of their school’s bleachers. They will time how long each object takes to reach the ground. How can they improve confidence in the experiment’s results?(1 point) Responses
A. Drop each object 10 times and use the average of each object’s fall times
B. Randomly select the order in which the objects are dropped.
C. Drop all four objects at once.
D. Let a different student time the drop of each object.