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
A patient with ptosis presents with retraction of ptotic eye lid on chewing. This represents: 
Select and explain. 
A. Marcus gunn Jaw winking syndrome, B. Third nerve misdirection syndrome, C. Abducent palsy, D. Occulomotor palsy
A: Marcus gunn Jaw winking syndrome
Answer: A: Marcus gunn Jaw winking syndrome 
Explanation: Ans. Marcus gunn Jaw winking syndrome