Piaget's Description of the Differences Between Preoperational Thought Characteristic of Preschool

Multiple Choice

Piaget's description of the differences between preoperational thought characteristic of preschool aged children) and concrete operational thought characteristic of elementary school aged children) ,includes which of the following?

A) Preoperational thought is reversible,but concrete operational thought is not.
B) Preoperational thought is fast,but concrete operational thought is slow.
C) Preoperational thought occurs in the frontal lobes,but concrete operational thought occurs in the corpus callosum.
D) Preoperational thought is centered,but concrete operational thought is decentered.