Charlene Has Achieved Formal Operational Thought and Is About to Attempt

Multiple Choice

Charlene has achieved formal operational thought and is about to attempt Piaget's pendulum task.What can she do that she was UNABLE to do when she was still in the concrete operations stage?

A) Formulate an approach to the task
B) Try out varying combinations of height,weight,force,and length
C) Measure the length of the string,the height of the pendulum,and the weight of the object
D) Evaluate the effects of multiple factors in systematic,methodical fashion