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
Steroid with max mineralocoicoid activity ? 
Select and explain. 
A. Fludrocoisone, B. DOCA, C. Prednisolone, D. Triamsinolone
A: Fludrocoisone
Answer: A: Fludrocoisone 
Explanation: Ans. is 'a' i.e, Fludrocoisone