This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Human identification, Subject name: Forensic Medicine
[{'content': 'In Mckern and Stewa maturation score of skeletal age, which of the following epiphyseal union is not used? \nSelect and explain. \nA. Humerus - Proximal end, B. Radius - Proximal end, C. Femur - Distal end, D. Iliac crest', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mckern and Stewa maturation score of skeletal age Humerus - Proximal end and medial epicondyle Radius - Distal end Femur - Head and Distal end Iliac crest. Sacrum--Lateral poion and 3,4th segments. The scoring is given based on the degree of epiphyseal union that is:', 'role': 'assistant'}]