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: Psychiatry
All are the features of Korsakoff's syndrome except : 
Select and explain. 
A. Confabulation, B. Retrograde amnesia, C. Antegrade amnesia, D. Defective motor skill
D: Defective motor skill
Answer: D: Defective motor skill 
Explanation: "Korsakoff syndrome is an irreversible chronic encephalopathy with antegrade and retrograde amnesia and confabulation".