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: Pharmacology
[{'content': 'Which of the following drugs used in osteoporosis acts both by decreasing the resorption of bone as well as inducing new bone formation ? \nSelect and explain. \nA. Teriparatide, B. Ibadronate, C. Strontium ranelate, D. Calcitonin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Hyperkalemia Repeat from May 2009', 'role': 'assistant'}]