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
A boy draws triangle but not diamond shape age is ? 
Select and explain. 
A. 3 years, B. 4 years, C. 5 years, D. 6 years
C: 5 years
Answer: C: 5 years 
Explanation: None