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: Medicine
[{'content': 'Blue coloured sclera is frequently associated with: \nSelect and explain. \nA. Osteogenesis imperfecta, B. Ehler danlos syndrome, C. Chondrodysplasia, D. Alpo syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The disorder is frequently associated with blue sclerae, dental abnormalities and progressive hearing loss. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 3207', 'role': 'assistant'}]