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': "False about optic nerve glioma \nSelect and explain. \nA. May be a part of von recklinghausen's disease, B. Unilateral axial proptosis, C. Most common primary orbital tumour among children, D. CT shows fusiform enlargement of optic nerve", 'role': 'user'}, {'content': 'Answer: C \nExplanation: M/c primary orbital tumour among children is Rhabdomyosarcoma.', 'role': 'assistant'}]