Which Statement Is NOT a Reason Why,according to Piaget,young Children

Multiple Choice

Which statement is NOT a reason why,according to Piaget,young children cannot grasp the notion of conservation? Young children:

A) fail to distinguish between the objective and the subjective.
B) believe that the world is as it seems.
C) distinguish between appearances and realities.
D) do not understand the difference between the world and their mental representation of it.