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: Unknown
Major criteria for rheumatic fever are - 
Select and explain. 
A. Carditis, B. Arthalgia, C. Fever, D. All of above
A: Carditis
Answer: A: Carditis 
Explanation: Ans- A Carditis