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
Long–term use of which diuretic agent can result in gynaecomastia ? 
Select and explain. 
A. Amiloride, B. Spironolactone, C. Triamterene, D. Acetazolamide
B: Spironolactone
Answer: B: Spironolactone 
Explanation: None