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
In which of the following psychiatric condition Floccillation is seen? 
Select and explain. 
A. Mania, B. Depression, C. Anxiety disorders, D. Delirium
D: Delirium
Answer: D: Delirium 
Explanation: Floccillation: Aimless plucking or picking, usually at bedclothes or clothing, commonly seen in dementia and delirium. Ref: Kaplan and Sadock's Synopsis of Psychiatry By Benjamin J. Sadock, Harold I. Kaplan, Virginia A. Sadock, 2007, Page 1423.