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
Phallic stage of Freud corresponds to which of the following stages of Piaget 
Select and explain. 
A. Sensorimotor, B. Pre operational, C. Concrete operational, D. Formal operational
B: Pre operational
Answer: B: Pre operational 
Explanation: None