This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Physiology
[{'content': "'Malignant pustule' is \nSelect and explain. \nA. Anthrax ulcer, B. Proliferating rodent ulcer, C. Malignant melanoma, D. Marjolin's ulcer", 'role': 'user'}, {'content': 'Answer: A \nExplanation: A congested edematous ulcer area with central necrosis and surrounding black ischar and satellite lesions is called "malignant pustule".', 'role': 'assistant'}]