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 45 year old female patient presents with symptoms of easy bruisability and frequent headaches. Physical examination show a moderate splenomegaly. Blood counts shows a normal leucocyte count and a platelet count of 1000 × 103/ cu mm. The leucocyte alkaline phosphatase score is normal. Which one of the following is the drug of choice for the treatment of this patient?a) Hydroxyureab) Radioactive phosphorusc) Anagrelided) Interferon alpha 
Select and explain. 
A. cd, B. bc, C. bd, D. ac
A: cd
Answer: A: cd 
Explanation: None