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': 'Which of the following statements about Lambe Eaton Myaesthenic syndrome is true? \nSelect and explain. \nA. Tensilon test is positive, B. Associated with adenocarcinoma of lung, C. Extraocular muscles are most commonly involved, D. Incremental response to repeated electrical stimulation', 'role': 'user'}, {'content': "Answer: D \nExplanation: Nerve stimulation studies in Eaton Lambe Myasthenic Syndrome when done at low rate of repetitive stimulation shows an initial low-amplitude decremental response. But at high rates (50 Hz), or following exercise, incremental responses occur. Ref: Harrison's Internal Medicine, 18th Edition, Chapter 386; Current Medical Diagnosis and Treatment, 2012, Chapter 24", 'role': 'assistant'}]