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: Pathology
Premature exfoliation of deciduous teeth is seen in 
Select and explain. 
A. Hypophosphatasia, B. Hypophosphaterria, C. Hyper phosphtasia, D. Hyperparathryroidism
A: Hypophosphatasia
Answer: A: Hypophosphatasia 
Explanation: None