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
Which of the following drugs used in osteoporosis acts both by decreasing the resorption of bone as well as inducing new bone formation ? 
Select and explain. 
A. Teriparatide, B. Ibadronate, C. Strontium ranelate, D. Calcitonin
C: Strontium ranelate
Answer: C: Strontium ranelate 
Explanation: Hyperkalemia Repeat from May 2009