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': 'Which of the following is true about acute dilatation of stomach \nSelect and explain. \nA. Dilatation of stomach seen on x-ray, B. Presents with vomiting, C. Aspiration, D. All', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'a' i.e. Dilatation of stomach seen on x-ray, 'b' i.e. Presents with vomiting, 'c' i.e. Aspiration", 'role': 'assistant'}]