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': 'Strontium ranelate is approved for treatment of: \nSelect and explain. \nA. Asthma, B. Cystic fibrosis, C. UTI, D. Osteoporosis', 'role': 'user'}, {'content': "Answer: D \nExplanation: Strontium ranelate is approved in several European countries for the treatment of osteoporosis. It increases bone mass throughout the skeleton; in clinical trials, the drug reduced the risk of veebral fractures by 37% and nonveebral fractures by 14%. It appears to be modestly antiresorptive, while at the same time not causing as much of a decrease in bone formation (measured biochemically). Ref: Harrison's principle of internal medicine 17th edition, chapter 338.", 'role': 'assistant'}]