Jaythree Is in the Stage of Formal Operational Thought and Has

Jaythree is in the stage of formal operational thought and has been asked to attempt Piaget's pendulum task.What will she be able to do that she was unable to do at the stage of concrete operations?

A) evaluate the effects of multiple factors in a systematic, methodical fashion
B) measure the length of the string, the height of the pendulum, and the weight of the object
C) formulate an approach to the task
D) try out varying combinations of height, weight, force, and length