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
Early exfoliation of deciduous teeth is seen in 
Select and explain. 
A. Papillon lefevre syndrome, B. Peter-Kelly syndrome, C. Pierre robin syndrome, D. None of the above
A: Papillon lefevre syndrome
Answer: A: Papillon lefevre syndrome 
Explanation: None