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: Medicine
All of the following agents may be used in the management of chronic hypocalcemia, except- 
Select and explain. 
A. Etidronate, B. Thiazides, C. Elemental Calcium, D. Vatamin D analogs
A: Etidronate
Answer: A: Etidronate 
Explanation: None