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
Syndrome associated with increased risk of leukemia is 
Select and explain. 
A. Plummer Vinson syndrome, B. Klinefelter syndrome, C. Sturge Weber syndrome, D. Multiple hamartoma syndrome
B: Klinefelter syndrome
Answer: B: Klinefelter syndrome 
Explanation: None