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: Ophthalmology
[{'content': 'A patient with ptosis presents with retraction of ptotic eye lid on chewing. This represents: \nSelect and explain. \nA. Marcus gunn Jaw winking syndrome, B. Third nerve misdirection syndrome, C. Abducent palsy, D. Occulomotor palsy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Marcus gunn Jaw winking syndrome', 'role': 'assistant'}]