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': 'Gold standard procedure to reduce recurrence of pterygium after surgical excision is \nSelect and explain. \nA. Thiotepa, B. B- radiation, C. Conjunctival autograft, D. Amniotic membrane grafting', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Gold standard procedure to reduce recurrence of pterygium after surgical excision is amniotic membrane grafting.', 'role': 'assistant'}]