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
Characteristic CVS lesion in syphilis is - 
Select and explain. 
A. Aneurysm of arch of aorta, B. AR, C. Aortic ring dilatation, D. AS
C: Aortic ring dilatation
Answer: C: Aortic ring dilatation 
Explanation: None