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
Most potent mineralocoicoid is 
Select and explain. 
A. Aldosterone, B. DOCA, C. Fludrocoeisone, D. Triamcinolone
A: Aldosterone
Answer: A: Aldosterone 
Explanation: Aldosterone is the most potent mineralocoicoid. Not used clinically because of the low oral bioavailability. most potent synthetic or man made is- fludrocoisone- having more mineralocoicoid activity (REF.Essential of medical pharmacology K D TRIPATHI 6 Edition, Page No - 282)