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': 'Chloroma is a tumor of - \nSelect and explain. \nA. Soft tissue, B. Bone, C. Hemopoeitic cell, D. Ovary', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]