This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
All are true about rheumatic fever, EXCEPT : 
Select and explain. 
A. Common in poor socioeconomic group, B. Develops after streptococci pharyngitis, C. Communicable disease, D. Seen in 5- 15 year of children
C: Communicable disease
Answer: C: Communicable disease 
Explanation: Ans. is 'c' Communicable disease Rheumatic feverThe incidence of rheumatic fever has declined in developed countries while in developing countries it remains a significant problem.Etiology - Rheumatic fever is associated with infection of the Pharynx and Tonsils by Group A beta hemolytic streptococcus*.Peak age of Incidence is 5-15 years. *It is not a communicable disease.Rheumatic fever occurs as a result of immunological hypersensitivity* (type II or type III) to streptococcal antigens.