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
Korsakoff's syndrome true is 
Select and explain. 
A. Cerebral Coex is mostly affected, B. Learning is relatively normal, C. Retrograde memory is not affected, D. Confabulation may be present
D: Confabulation may be present
Answer: D: Confabulation may be present 
Explanation: Di.e. Confabulation may be present