This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
[{'content': 'What is the normal orientation of humeral head \nSelect and explain. \nA. Retroversion of 80 degrees, B. Retroversion of 30 degrees, C. Anteversion of 15 degrees, D. Anteversion of 50 degrees', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Normal humeral retroversion is 25-35 degreesNormal femoral anteversion is 8-15 degrees(Refer: BD Chaurasia, Textbook of Human Anatomy, Vol 1, 6th edition)', 'role': 'assistant'}]