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': 'A 62-year-old patient has been diagnosed with a restrictive pulmonary disease. Which of his following lung measurements is likely to be normal \nSelect and explain. \nA. FEV1, B. FVC, C. FEV1/FVC, D. FRC', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]