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
"Nihilistic delusions" are seen in: 
Select and explain. 
A. Endogenous depression, B. Dysthymia, C. Cyclothymia, D. None
A: Endogenous depression
Answer: A: Endogenous depression 
Explanation: A i.e. Endogenous depression