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: Skin
Diagnostic test for syphilis: March 2013 
Select and explain. 
A. VDRL, B. RPR, C. FTA-ABS, D. IgG ELISA
C: FTA-ABS
Answer: C: FTA-ABS 
Explanation: Ans. C i.e. FTA-ABS