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: Anatomy
Lower two pas of sternal body is fused by: 
Select and explain. 
A. 8 years, B. 10 years, C. 12 years, D. 14 years
D: 14 years
Answer: D: 14 years 
Explanation: Ans: D. 14 yearsLower two pas of sternal body is fused by 14 years.