This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Identification - Medicolegal aspects, Subject name: Forensic Medicine
[{'content': 'Ossification of proximal end of ulna takes place at what age: \nSelect and explain. \nA. 10 years, B. 12 years, C. 13 years, D. 16 years', 'role': 'user'}, {'content': 'Answer: D \nExplanation: ANSWER: (D) 16 yearsREF: Parikh 6th edition page, Cunningham s textbook of anatomy page 213Ossification of ulna:Ulna is ossified by one primary and two or more secondary centers AppearanceFusionProximal ulna (secondary center)10 years16 yearsBody (primary center)2nd month of intrauterine lifeAt birthDistal ulna (secondary center)6 years20-23 yearsUnless specified the age is for male', 'role': 'assistant'}]