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: Anatomy
[{'content': 'Lingula is a pa of: \nSelect and explain. \nA. Left upper lobe, B. Left lower lobe, C. Right upper lobe, D. Right middle lobe', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Left upper lobe', 'role': 'assistant'}]