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
The characteristic feature of a frontal lobe tumor is: 
Select and explain. 
A. Abnormal gait, B. Aphasia, C. Distractibility, D. Antisocial behavior
D: Antisocial behavior
Answer: D: Antisocial behavior 
Explanation: Answer is D (Antisocial behaviour): Antisocial behaviour is a characteristic feature offrontal disinhibition syndrome produced from frontal lobe dames''