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
[{'content': 'Which of the following is a flocculation test ? \nSelect and explain. \nA. Widal test, B. Weil- felix test, C. VDRL, D. Paul- Bunnel test', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., VDRL When instead of sedimenting, the precipitate remains suspended asfloccules, the reaction is known as flocculation ( instead of precipitation) Examples -) VDRL slide flocculation test and Kahn tube flocculation test for syphilis.", 'role': 'assistant'}]