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': 'Discrete, pus filled raised lesion is called \nSelect and explain. \nA. Pustule, B. Scale, C. Wheal, D. Plaque', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Pustule is discrete pus filled raised lesion.', 'role': 'assistant'}]