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
Which is the most common type of persistent delusional disorder ? 
Select and explain. 
A. Delusion of persecution, B. Somatic delusion, C. Delusion of jealousy, D. Delusion of grandeur
A: Delusion of persecution
Answer: A: Delusion of persecution 
Explanation: Ans. A. Delusion of persecution Delusion of persecution is the most common type of persistent delusional disorder.