This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
Which of the following is not a bizarre delusion? 
Select and explain. 
A. I am followed by aliens from another universe, B. There is chip inserted in head to locate me, C. My wife is definitely having affair with a colleague, D. I am the immortal power
C: My wife is definitely having affair with a colleague
Answer: C: My wife is definitely having affair with a colleague 
Explanation: Ans. C. My wife is definitely having affair with a colleagueDSM treats the presence of bizarre delusions (BD) as the heaviest-weighted clinical criterion of schizophrenia and define bizarre delusion as "clearly implausible and not understandable and not derived from ordinary life experiences".