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: Surgery
[{'content': 'In osteoporosis, bone formation is increased by which drug - \nSelect and explain. \nA. Bisphosphonates, B. Estrogen, C. Calcitonin, D. Teriparatide', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'opl' i.e Teriparatide Drug used in osteoporosis Inhibit resorption Bisphosphonates, donesumab, cinacalcet, calcitonin, estrogen, SERMS, gallium nitrate. Stimulate formation :-Teriparatide, calcium, calcitriol, fluorides. Both actions Strontium renelate.", 'role': 'assistant'}]