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: Forensic Medicine
A child at the age of 7 years has how many teeth: 
Select and explain. 
A. 16, B. 20, C. 24, D. 28
C: 24
Answer: C: 24 
Explanation: C i.e. 24