Piaget's Principle of the Invariant Developmental Sequence Means That

Multiple Choice

Piaget's principle of the invariant developmental sequence means that

A) animals of closely related species (e.g., apes/monkeys) have identical developmental stages.
B) every child goes through the stages in the same order.
C) if well nourished, children will develop at the same rate.
D) smart children can sometimes skip one of the stages.