This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nutrition, Subject name: Medicine
[{'content': 'This patient presented with fatigue, fever, anorexia, and weight loss. What is the most likely diagnosis? \nSelect and explain. \nA. Leukemia, B. Scurvy, C. Acquired immunodeficiency syndrome, D. Sarcoidosis', 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer A. LeukemiaGingival infiltration in a patient with fever, fatigue, and weight loss is most suggestive of acute leukemia, especially monocytic variants of acute myelogenous leukemia. This patient's gingival infiltration resolved after treatment for acute myelomonocytic leukemia.", 'role': 'assistant'}]