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
Exudate in rheumatic fever is - 
Select and explain. 
A. Serous, B. Purulent, C. Fibrinous, D. Myxomatous
C: Fibrinous
Answer: C: Fibrinous 
Explanation: None