The drug X is used in osteoporosis. Its mechanism of action is shown in the Figure below. X is likely to
High-Yield Explanation
New drug for osteoporosis: 1. Teriparatide: PTH with 1-34 amino acid, stimulates osteoblast.2. Strontium ranelate: dual action: stimulate osteoblast and inhibit osteoclast.3. Denosumab: monoclonal antibody against rank ligand.