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': 'Shrinking lung is a feature of - \nSelect and explain. \nA. Rheumatoid arthritis, B. Systemic lupus erythematosus, C. Scleroderma, D. Sarcoidosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]