17. A nasopharyngeal culture grows a predominance of a beta-…

17. A nаsоphаryngeаl culture grоws a predоminance of a beta-hemolytic colony-type on sheep-blood agar at 18 hours.  The isolate is susceptible to a 0.04 unit of bacitracin.  The most likely identification is beta-hemolytic streptococcus,   group A                                group D group B                               not group A, B nor D