This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'Which of the following is not a myeloproliferative disease? \nSelect and explain. \nA. Polycythemia rubra vera, B. Acute myeloid leukemia, C. Chronic myeloid leukemia, D. Essential thrombocytosis', 'role': 'user'}, {'content': "Answer: B \nExplanation: Chronic myeloproliferative disorders Myeloid - CML Erythroid - Polycythemia vera Megakaryocytic - Essential thrombocytosis Fibroblast - Idiopathic myelofibrosis (Refer: Robbins & Cotran's - Pathologic Basis of Disease, SAE, 1st edition, Vol I-pg no: 616)", 'role': 'assistant'}]