This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: D.O.C, Subject name: Pharmacology
Drug of choice in Lithium induced diabetes mellitus? 
Select and explain. 
A. Conivaptan, B. Amiloride, C. Indapamide, D. Vasopressin
B: Amiloride
Answer: B: Amiloride 
Explanation: Ans. (b) Amiloride