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': 'Leucocyte alkaline phosphatase (LAP) is raised in A/E- \nSelect and explain. \nA. Myelofibrosis, B. Essential thrombocythemia, C. Polycythemia, D. Chronic myeloid leukemia', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Chronic myeloid leukemiao Low LAP score is seen in : -(i) CML(ii) Paroxysmal nocturnal hemoglobinuria(iii) Hematological neoplasma (rare)(iv) Myelodysplastic syndrome(v) Rare infections or toxic exposureo Myelofibrosis, polycythemia vera and essential thrombocytosis (thrombocythemia) are myeloproliferative disorders in which LAP score is increased.", 'role': 'assistant'}]