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: Pathology
A patient of 47XXY karyotype with features of hypogonadism; likely diagnosis is : 
Select and explain. 
A. Turners syndrome, B. Kilenfelters syndrome, C. Edwards syndrome, D. Down syndrome
B: Kilenfelters syndrome
Answer: B: Kilenfelters syndrome 
Explanation: Answer is B (Klinefelter's Syndrome):Klinefelter's syndrome most commonly presents with 47 (XXY) karyosome and hypogonadism is a common form of presentation and suppos the diagnosis.