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
Woman firmly and persistently feels her husband is cheating on her and she disapproves to accePt any proof given in the husbands suppo' The other family members do not suppoherbelief. This is anexample of- 
Select and explain. 
A. Illusion, B. Delusion, C. Hallucination, D. Perversion
B: Delusion
Answer: B: Delusion 
Explanation: Ans. B. DelusionIn the question given the woman has a false unshakable belief that her husband is cheating on her and she disapproves all her relatives and proofs in suppo of her husband.Thus this is an example of delusion.