Bacitracin sensitive streptococci:: (A) Steptococcus agalactiae, (B) Streptococcus pyogenes, (C) Enterococcus, (D) Streptococcus viridans
Answer is B. Ans. (b) Streptococcus pyogenes Ref Ananthanarayan 8/e, p 207, 9/e, p 210 "Sensitivity to hacitracin is employed as a convenient method for differentiating Str. pyogenes from other hemolytic streptococci." For details see answer no 20 of chapter 8.