This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Basics of Psychiatry, Subject name: Psychiatry
You are called to the emergency room to see a 40-year-old woman with long standing history of chronic depression. She tells you: My belly and chest are empty. All my organs are gone. I don't exist. I'm dead. This patient is presenting with:- 
Select and explain. 
A. Paranoid delusions, B. Delusions of persecution, C. Nihilistic delusions, D. Delusions of reference
C: Nihilistic delusions
Answer: C: Nihilistic delusions 
Explanation: Nihilistic delusions: Nihilistic is the root of the word 'annihilate' and means destruction or death. People experiencing Nihilistic delusions believe things like they are decomposing, their bodies don't work, their internal organs are rotten or solidifying or even that they are actually dead.