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
Gonorrhoea is diagnosed by: September 2004 
Select and explain. 
A. Pili agglutination, B. CFT, C. Haemagglutination, D. All of the above
A: Pili agglutination
Answer: A: Pili agglutination 
Explanation: Ans. A i.e. Pili agglutination