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
Glomerulonephritis in streptococcal infection is diagnosed by - 
Select and explain. 
A. Blood culture, B. Throat culture, C. ASO Titre, D. PCR
C: ASO Titre
Answer: C: ASO Titre 
Explanation: Ans. is 'c' i.e., ASO Titre