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: Radiology
[{'content': 'The lordotic view is valuble in confirming the presence of lesion in the lung apex and also in the – \nSelect and explain. \nA. Posterior mediastinum, B. Lingular segment, C. Posterior basal segment, D. Hilum', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]