Bacteria That Cause Periodontal Disease Have Adhesins for Receptors on Streptococci

Bacteria that cause periodontal disease have adhesins for receptors on streptococci that colonize on teeth. This indicates that

A) streptococci get bacterial infections.
B) bacteria that cause periodontal disease adhere to gums and teeth.
C) streptococcal colonization is necessary for periodontal disease.
D) streptococci cause periodontal disease.
E) bacteria that cause periodontal disease adhere to teeth.