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
Which of the following is true for 8yr old boy. 
Select and explain. 
A. 8 Permanent, 16 Temporary tooth, B. 4 Temporary, 20 Permanent tooth, C. 12 Temporary, 12 Permanent tooth, D. 4 Permanent, 20 Temporary tooth
C: 12 Temporary, 12 Permanent tooth
Answer: C: 12 Temporary, 12 Permanent tooth 
Explanation: Number of permanent teeth = (Age - 5 ) × 4
So, Number of permanent teeth = (8 - 5 ) × 4 = 12