This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteriology, Subject name: Medicine
Best confirmatory serological test for syphilis is? 
Select and explain. 
A. VDRL, B. TPPA, C. TPHA, D. FTA-ABS
D: FTA-ABS
Answer: D: FTA-ABS 
Explanation: ANSWER: (D) FTA-ABSREF: Harrison 17th ed chapter 162 table 162-1Repeat Medicine Post diploma June 2012