This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AML & ALL, Subject name: Medicine
[{'content': 'Gum hyperophy is seen in which type of AML? \nSelect and explain. \nA. Myelogenous leukaemia, B. Myelomonocytic leukaemia, C. Megakaryocytic leukaemia, D. Erythroleukemia', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Infiltration of the gingivae, skin, soft tissues, or the meninges with leukemic blasts at diagnosis is characteristic of the monocytic subtypes (M4 and M5). Significant gastrointestinal bleeding, intra-pulmonary hemorrhage, or intracranial hemorrhage occur in M3 AML. Bleeding associated with coagulopathies occur in M5 AML.', 'role': 'assistant'}]