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: Pediatrics
Which of the following is best used in the diagnosis of congenital syphilis – 
Select and explain. 
A. FTA–ABS, B. TPHA, C. IgM–FTA ABS, D. TPI
C: IgM–FTA ABS
Answer: C: IgM–FTA ABS 
Explanation: None