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 17 year old girl with keratitis and severe pain in the eye came to the hospital and acanthamoeba keratitis was suspected. The patient gave the history of following 4 points. Out of these which is not a risk factor for acanthamoeba keratitis. \nSelect and explain. \nA. Extended wear contact lens., B. Exposure to diy water., C. Corneal trauma, D. Squamous blepharitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Squamous blepharitis', 'role': 'assistant'}]