This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Pharmacology
In Addison's disease drug to be given is 
Select and explain. 
A. Hydrocoisone, B. Betamethasone, C. Prednisolone, D. DOCA
A: Hydrocoisone
Answer: A: Hydrocoisone 
Explanation: Refer KDT 6/e p 283 In chronic adrenal insufficiency or Addinsons disease, hydrocoisone given orally IA the drug of choice Hydrocoisone is a glucocoicoid with maximum mineralocoicoid action