YourcompanyhastwodomaincontrollersthatareconfiguredasinternalDNSservers.AllzonesontheDNSserversareActiveDirectory-integratedzones.Thezonesallowalldynamicupdates.Youdiscoverthatthecontoso.comzonehasmultipleentriesforthehostnamesofcomputersthatdonotexist.Youneedtoconfigurethecontoso.comzonetoautomaticallyremoveexpiredrecords.Whatshouldyoudo()

A.Enableonlysecureupdatesonthecontoso.comzone.

B.Enablescavengingandconfiguretherefreshintervalonthecontoso.comzone.

C.FromtheStartofAuthoritytab，decreasethedefaultrefreshintervalonthecontoso.comzone.

D.FromtheStartofAuthoritytab，increasethedefaultexpirationintervalonthecontoso.comzone.