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: Medicine
All are true regarding Plummer Vinson syndrome,except - 
Select and explain. 
A. Oesophageal web, B. Predisposes to malignancy, C. Koilongchia, D. Common in elderly males
D: Common in elderly males
Answer: D: Common in elderly males 
Explanation: None