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: Pathology
Which of the following is not a component of Jones criteria for diagnosing acute rheumatic fever: March 2008 
Select and explain. 
A. Pancarditis, B. Migratory polyahritis, C. Erythema nodosum, D. Sydenham chorea
C: Erythema nodosum
Answer: C: Erythema nodosum 
Explanation: Ans. C: Erythema nodosum