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
True statement about Antistreptolysin 'O' titre is - 
Select and explain. 
A. In normal people the titre is < 200, B. In acute glomerulonephritis the titre is low, C. ASO titre > 200 indicate rheumatic fever, D. Streptozyme test is an active haemagglutination test
B: In acute glomerulonephritis the titre is low
Answer: B: In acute glomerulonephritis the titre is low 
Explanation: None