Elijah is a 3-year boy who likes to spread his peas and carrots all over his plate. After spreading out his food, he asks for more. His mom pushes all the food together and Elijah continues to eat. Which period of cognitive development is Elijah in?
(A) Formal operations
(B) Preoperational
(C) Accomodation
(D) Sensorimotor
(E) Egocentrism