This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
[{'content': 'Voex vein invasion is commonly seen in \nSelect and explain. \nA. Retinoblastoma, B. malignant Melanoma, C. Optic nerve glioma, D. Medula epithelioma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Voex vein invasion is common in malignant Melanoma where does optic nerve invation is common in retinoblastoma Refer khurana 6/e p 420', 'role': 'assistant'}]