According to Piaget, Early Childhood Is a Time of Transition

According to Piaget, early childhood is a time of transition between:

A) preoperational thinking and formal operational thinking.
B) the overtly physical schemas of infancy and the egocentrism of middle childhood.
C) the sensorimotor stage of infancy and the ability to think symbolically which emerges in middle childhood.
D) the overtly physical schemas of infancy and the ability to use mental operations in middle childhood.