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: Gynaecology & Obstetrics
[{'content': 'Acute bilirubin encephalopathy is characterized by all except \nSelect and explain. \nA. Poor feeding, B. Lethargy, C. Hypertonia, D. Abnormal auditory evoked responses', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Acute bilirubin encephalopathy is characterized by hypotonia.', 'role': 'assistant'}]