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
[{'content': 'A patient by name Mahesh whose age is 60 years presented with hypercellulor Bone marrow, Peripheral Blood smear shows pancytopenia and 15 % mycloblast cells. Most likely diagnosis is \nSelect and explain. \nA. Myelodysplastic syndrome, B. Blast Crisis in CML, C. AML, D. Polycythemia vera', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Hypercellulor Bone marrow\nPeripheral Blood smear shows pancytopenia\n15 % myeloblast cells are characteristically seen in MDS\nIt is common seen in elderly', 'role': 'assistant'}]