Which Characteristic Behavior Is Demonstrated by a 4-Year-Old Child in the Preoperational

Which characteristic behavior is demonstrated by a 4-year-old child in the preoperational stage as described by Piaget?

A) Comparing how fast a ball and a block fall from the same height
B) Not wanting to share their blocks but feeling sad that the other child is crying
C) Understanding how differently shaped figures fit together into a jigsaw puzzle
D) Showing parents that they can ride a bicycle without training wheels