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
ASO (Antistreptolysin 0) test is used for the diagnosis of 
Select and explain. 
A. Rheumatoid arthritis, B. Typhoid fever, C. Rheumatie fever, D. Rickettsial fever
C: Rheumatie fever
Answer: C: Rheumatie fever 
Explanation: None