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
All of the following glucocorticoids lack mineralocorticoid activity, except: 
Select and explain. 
A. Beclomethasone, B. Triamcinolone, C. Prednisolone, D. Dexamethasone
C: Prednisolone
Answer: C: Prednisolone 
Explanation: None