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
1st dental visit of the child should be at the age of: 
Select and explain. 
A. 6 months, B. 1 year, C. 2 years, D. 3 months
B: 1 year
Answer: B: 1 year 
Explanation: None