Please choose the correct answer to the question: Four different students take turns pushing a large, heavy ball on the school parking lot. What is the best way to determine which student used the most force to push the ball?

Answer1: compare the sizes of the students Answer2: compare the ages of the students Answer3: compare the distances that the ball rolled Answer4: compare the number of times the ball was rolled

Answer format: answer1/answer2/answer3/answer4