A patient presenting to the ER with a platelet count of more than 1000 x 109/L and a leukocyte count of 25 x 109/L with a normochromic, normocytic anemia should be evaluated for:
A) Philadelphia chromosome
B) Essential thrombocythemia
C) Chronic idiopathic myelofibrosis
D) MDS-EB-2
E) MDS-MLD