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
Teeth that erupt in 30 days of birth 
Select and explain. 
A. Neonatal teeth, B. Natal teeth, C. Premature teeth, D. None
A: Neonatal teeth
Answer: A: Neonatal teeth 
Explanation: None