This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
[{'content': 'VDRL test for diagnosis of syphilis is an example for \nSelect and explain. \nA. Precipitation test, B. Agglutination, C. Immunofluorescence, D. Flocculation', 'role': 'user'}, {'content': 'Answer: D \nExplanation: VDRL- Flocculation test Though flocculation also is a type of precipitation, flocculation is ideal for VDRL In which floccules are suspended after formation of antigen-antibody complex Ref: Textbook of Microbiology Baveja 5th ed Pg 120', 'role': 'assistant'}]