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
First secondary ossification center appears in 
Select and explain. 
A. Lower end of femur, B. Upper end of humerus, C. Lower end of fibula, D. Upper end of tibia
A: Lower end of femur
Answer: A: Lower end of femur 
Explanation: Ans. is 'a' i.e., Lower end of femur Site given in question Secondary ossification center appears at Lower end of femur 9th month intrauterine life Upper end of tibia At bih Upper end humerus 1/2 -1 year of age Lower end of fibula 1 year of age