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': 'Best view for right pleural effusion in X-Ray chest \nSelect and explain. \nA. Supine, B. Right lateral decubitus, C. Left lateral decubitus, D. All', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Right lateral decubitus', 'role': 'assistant'}]