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
Treatment of choice for SIADH is ? 
Select and explain. 
A. Lithium carbonate, B. Demeclocycline, C. Vasopressin, D. Hypertonic Saline
D: Hypertonic Saline
Answer: D: Hypertonic Saline 
Explanation: None