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
A 24-year-old male patient with h/o primary syphilis in the form of genital ulcer & mucocutaneous lesions presents with features suggestive of neurosyphilis in the form of meningitis for which appropriate treatment was started. What will you do for monitoring of treatment - 
Select and explain. 
A. Venereal disease Research Laboratory test (VDRL), B. TPI, C. FTS-AB, D. ELISA
A: Venereal disease Research Laboratory test (VDRL)
Answer: A: Venereal disease Research Laboratory test (VDRL) 
Explanation: None