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: Gynaecology & Obstetrics
Gynaecomastia is seen in : 
Select and explain. 
A. Klinefelter's syndrome, B. Lepromatous leprosy, C. HIV, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: All of the above Gynaecomastia implies presence of female type mammary glands in male.