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 true about circulus aeriosus minor except: \nSelect and explain. \nA. It receives contribution from anterior ciliary aeries and long posterior ciliary aeries, B. It is an aerial and venous plexus, C. It lies near the pupillary margin, D. It is the seat of formation of aqueous humour', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. It is the seat of formation of aqueous humour', 'role': 'assistant'}]