Which of the Following Is True According to Piaget's Concept

Multiple Choice

Which of the following is true according to Piaget's concept of conservation?

A) The ability rarely occurs before age nine.
B) The ability requires the ability to see the perspective of others.
C) It means that a child will not be fooled by an apparent change in volume if water is poured from a short,wide glass into a taller,thinner glass.
D) It requires the ability to mentally manipulate symbolic external characteristics in the absence of visual cues.