Which of the Following Would Be Most Representative of a Child

Which of the following would be most representative of a child in Jean Piaget's preoperational stage of development?

A) A child incorrectly assumes that everyone in a room has the same view of an object that he has.
B) When asked where she would put a third eye, a child indicates that she would put it on her hand.
C) When an object is hidden from view, a child assumes that it no longer exists and looks away.
D) A child understands that the amount of water doesn't change when it is poured into different sized beakers.