Bacitracin sensitive streptococci:
High-Yield Explanation
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.