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 45 year old male patient complains of fever, weakness and loss of appetite. General physical examination reveals splenomegaly. Histopathologic examination reveals LAP score of 10. This patient may be suffering from? 
Select and explain. 
A. Thrombocytosis, B. Polycythemia vera, C. Chronic myeloid leukemia, D. Myelofibrosis
C: Chronic myeloid leukemia
Answer: C: Chronic myeloid leukemia 
Explanation: Myeloproliferative disorders: