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
Not a cause of Gynaecomastia: 
Select and explain. 
A. INH, B. Cimetidine, C. Digitalis, D. Pyrazinamide
D: Pyrazinamide
Answer: D: Pyrazinamide 
Explanation: Pyrazinamide