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': 'Most common site for putting chest drain in case of pleural effusion - \nSelect and explain. \nA. 2nd intercostal space midclavicualar line, B. 7th intercostal space midaxillary line, C. 5th I.C. space mid clavicular line., D. 5', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Site for putting chest drain in pleural effusion → 7th ICS mid axillary line\nSite for putting needle in spontaneous pneumothorax → 2nd ICS, mid clavicular line.', 'role': 'assistant'}]