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: Pediatrics
Which of the following are the first incisors to erupt in an infant – 
Select and explain. 
A. Lower central, B. Lower lateral, C. Upper central, D. Upper lateral
A: Lower central
Answer: A: Lower central 
Explanation: 4-7 months old: The first baby teeth usually begin to break through (erupt) the gums at around 6 months old.
This can occur anywhere between four and seven months.
As a general rule, the first teeth to erupt are the two in the front bottom.
These are called the lower central incisors.