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: Pathology
Mucocutaneous circumoral pigmentation is found in: 
Select and explain. 
A. Peutz-Jeghers syndrome, B. Plummer-Vinson syndrome, C. Lead poisoning, D. Bechet's syndrome
A: Peutz-Jeghers syndrome
Answer: A: Peutz-Jeghers syndrome 
Explanation: None