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': "All of the following are components of Homer's syndrome except \nSelect and explain. \nA. Ptosis, B. Exophthalmos, C. Anhidrosis, D. Loss of cilio-spinal reflex", 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Exopthalmos', 'role': 'assistant'}]