Dr Brown Conducts a Study in Which Participants Are Presented

Dr. Brown conducts a study in which participants are presented with the pendulum problem described in the text and are asked to determine which factor or factors influence the amount of time it takes the pendulum to swing through a complete arc: the length of the string, the heaviness of the weight, the height from which the weight is dropped, or some combination of these factors. Which comparison is MOST likely to be made by an individual in Piaget's formal operational stage?

A) heavy weight on short string versus light weight on long string, both dropped from the same height
B) heavy weight on long string versus light weight on short string, both dropped from the same height
C) light weight on short string dropped from high position versus light weight on short string dropped from lower position
D) light weight on long string dropped from high position versus light weight on short string dropped from lower position