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: Anatomy
[{'content': 'In infant, bone marrow biopsy is done from \nSelect and explain. \nA. Tibia, B. Sternum, C. Posterior superior iliac spine, D. Iliac crest', 'role': 'user'}, {'content': 'Answer: A \nExplanation: .', 'role': 'assistant'}]