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': 'All are good prognostic factors in Neuroblastoma except \nSelect and explain. \nA. Stage 45, B. Trk A expression, C. Trk B expression, D. Age of 1 year', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Trk B expression\xa0is associated with poor prognosis.\nTrk A\xa0expression\xa0is associated with Good\xa0prognosis.', 'role': 'assistant'}]