This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth and development, 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: Eruption times vary from child to child. As seen from the cha, the first teeth begin to break through the gums at about 6 months of age. Usually, the first two teeth to erupt are the two bottom central incisors (the two bottom front teeth). Next, the top four front teeth emerge. Reference: GHAI Essential pediatrics, 8th edition