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: Surgery
[{'content': 'Linitis plastica is commonly seen in ? \nSelect and explain. \nA. Ca. stomach, B. Sarcoidosis, C. Lymphoma, D. L,eiomyosarcoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Ca. stomach", 'role': 'assistant'}]