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
Best test to evaluate syphilis after treatment is: 
Select and explain. 
A. TPA, B. FTA-ABS, C. TPHA, D. VDRL
D: VDRL
Answer: D: VDRL 
Explanation: None