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: Medicine
[{'content': 'For clinically detectable ascites, the minimal amount of fluid should be \nSelect and explain. \nA. 300 cc, B. 600 cc, C. 1 litre, D. 2 litre', 'role': 'user'}, {'content': 'Answer: A \nExplanation: This is a direct pick from National Boards.', 'role': 'assistant'}]