Anenterprisehasthreenodes：-Node’A’isaproductiondatabase，-Node’B’isaproductionApplicationserver，and-Node’C’isatestanddevelopmentnode.Node’C’isusedbysixprogrammerstodevelopandtheproductionapplicationasbusinesscriticalandwouldliketomakeithighlyavailablewithHACMP.Applicationdevelopmentandtestingisnotbusinesscritical.Whichofthefollowingdescribesthebestsolution？（）
A.ThereisnotanadequatesolutionbecauseHACMPshouldnotbeconfiguredinthisenvironmentwithoutadedicatedstandbynode.
B.Nodes’A’and’B’shouldbeconfiguredinaclusterwithmutualfalloveroftwocascadingresourcegroupstoprovidebothnodeswilldeliveracceptableresponsetimewithbothresourcegroups.
C.Nodes’A’and’C’shouldbeconfiguredinonecluster，andNodes’B’and’C’inanotherclustertopreventboththedatabaseandapplicationserverfromfallingovertoNode’C’atthesametime.
D.Nodes’A’，’B’，and’C’shouldbeconfiguredinaclusterwithNode’C’thehotstandbyforboththedatabaseandapplicationserverresourcegroups.WorkloadManager（WLM）mustbeconfiguredondatabaseandapplicationdevelopersfromoverutilizingtheCPUresources.