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
A pt. being investigated for anemia has a dry marrow tap ; peripheral smear reveals tear drop cells, likely diagnosis is : 
Select and explain. 
A. Leukemia, B. Lymphoma, C. Myelofibrosis, D. Polycythemia rubra vera
C: Myelofibrosis
Answer: C: Myelofibrosis 
Explanation: None