Dental caries is caused by -: (A) Streptococcus pyogenes, (B) Streptococcus mutans, (C) Enterococcus, (D) H. influenzae
Answer is B. Ans. is 'b' i.e., Streptococcus mutans . Streptococcus mutans belongs to viridans streptococci and is an impoant cause of dental caries.