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: Medicine
B cell prolymphocytic leukemia patients differ from those with B cell chronic lymphocytic leukemia in 
Select and explain. 
A. Presenting at a younger age, B. Having a lower total leucocyte count, C. Having prominent lymphadenopathy, D. Having a shorter survival
D: Having a shorter survival
Answer: D: Having a shorter survival 
Explanation: None