This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Subject name: Ophthalmology
[{'content': 'Which of the following is k/a dangerous zone of eye- \nSelect and explain. \nA. Sclera, B. Retina, C. Optic nerve, D. Ciliary body', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e. Ciliary body Wound involving the ciliary body are most prone to develop sympathetic ophthalmitis, thus ciliary region is k/a the dangerous zone of the eye.", 'role': 'assistant'}]