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: Dental
The 'Red complex' associated with bleeding on probing is comprised of 
Select and explain. 
A. E.corrodens, A.actinomycetem comitans, Capnocytophaga, B. A.naeslundii, A.viscosus, A.odontolyticus, C. P.gingivalis, T.forsythia, T.denticola, D. Streptococcus, Fusobacterium, Campylobacter
C: P.gingivalis, T.forsythia, T.denticola
Answer: C: P.gingivalis, T.forsythia, T.denticola 
Explanation: None