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': 'Treatment of choice for Bilateral retinoblastoma \nSelect and explain. \nA. Tumor destruction therapy, B. Cryotherapy, C. VEC regimen, D. Enucleation', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]