According to Jean Piaget,there Are Four Stages of Development

Multiple Choice

According to Jean Piaget,there are four stages of development.The first three stages of development are universal,but the last stage,called the formal operational stage,is never reached by some people.People who do not reach this stage:

A) often remain highly egocentric
B) are more often uneducated people
C) never quite learn how to "play" with an idea
D) cannot deal with hypothetical ideas
E) all of the above