This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
[{'content': 'Drug X which inhibit the binding of RANKL to its receptor (RANK) in osteoporosis: \nSelect and explain. \nA. Teriparatide, B. Alendronate, C. Denosumab, D. Estrogen', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C. DenosumabOsteoclasts express RANK receptor which on stimulation causes resorption of bone. Denosumab is monoclonal antibody which inhibit the binding of ligand to the receptor and thus play a role in osteoporosis.', 'role': 'assistant'}]