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: Pediatrics
[{'content': 'Retinoblastoma gene is located on - \nSelect and explain. \nA. Chromosome 5, B. Chromosome 8, C. Chromosome 13, D. Chromosome 16', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Chromosome 13", 'role': 'assistant'}]