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': 'All the following statements are true about Lambert Eaton syndrome except -a) Positive tensilon testb) Spares occulomotor nervec) Decremental response to repeated electrical stimulationd) Associated with adenocarcinoma of lung \nSelect and explain. \nA. a, B. ac, C. ad, D. b', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]