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': 'Vascular congestion over inseions of the rectus muscles (paicularly lateral rectus) is seen in: \nSelect and explain. \nA. Lymphoma, B. Hemangioma, C. Graves ophthalmopathy, D. Trauma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Graves ophthalmopathy', 'role': 'assistant'}]