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': "Which of the following is usually bilateral carcinoma of breast? \nSelect and explain. \nA. Paget's disease, B. Ductal carcinoma, C. Lobular carcinoma, D. Medullary carcinoma", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Lobular carcinoma usually presents as bilateral condition.', 'role': 'assistant'}]