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. Hypeonic Saline
B: Demeclocycline
Answer: B: Demeclocycline 
Explanation: Demeclocycline