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: Medicine
[{'content': 'The characteristic feature of a frontal lobe tumor is: \nSelect and explain. \nA. Abnormal gait, B. Aphasia, C. Distractibility, D. Antisocial behavior', 'role': 'user'}, {'content': "Answer: D \nExplanation: Answer is D (Antisocial behaviour): Antisocial behaviour is a characteristic feature offrontal disinhibition syndrome produced from frontal lobe dames''", 'role': 'assistant'}]