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': 'Cinacalcet acts by \nSelect and explain. \nA. Inhibiting RANK - ligand, B. Activating osteoblasts, C. decreasing parathormone secretion, D. Increasing vitamin D', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cinacalect is a calcimimetic drug. It resembles calcium and activates calcium sensing receptor(CaSR) present on parathyriod gland and decreases parathormone secretion.', 'role': 'assistant'}]