Andrew Johnson (December 29, 1808 – July 31, 1875) was the 17th president of the United States, serving from 1865 to 1869
Answer:
According psychologist Jean Piaget children go through four key stages of cognitive development.: sensorimotor, stage, concrete operational and formal operational stage. Piaget believed that in each stage, children need constant external motivation. Correct answer: C
He explained in his theory what a child is capable of doing at different stages in his or her development.
Explanation:
I would say C hope I was able to help
