This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
Sensorimotor	stage	of	cognitive	development	is
characterized by 
Select and explain. 
A. Egocentricism, B. Symbolic play, C. Animism, D. Conservation
B: Symbolic play
Answer: B: Symbolic play 
Explanation: None