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
Group A β-hemolytic streptococcal infection of the pharynx may be followed in some by: 
Select and explain. 
A. Diphtheria, B. Typhoid fever, C. Rheumatic fever, D. Syphilis
C: Rheumatic fever
Answer: C: Rheumatic fever 
Explanation: None