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: Microbiology
Test used for diagnosis of congenital syphilis: 
Select and explain. 
A. IgMFTA, B. VDRL, C. TPI, D. Kahn flocculation test
A: IgMFTA
Answer: A: IgMFTA 
Explanation: Ans. (a) IgMFTA