Whilesettingupthethresholdsfortablespacespaceusagemetricsforoneofyourtablespaces，youdefinethecriticalthresholdas60%andwarningthresholdas75%.Whatwouldbetheresultofthissetting？（）
A.ItwouldresultinanerrorbecausethewarningthresholdcannotbemorethanthecriticalthresholD.
B.ThewarningthresholdisignoredandalertswouldbegeneratedwhenspaceusageexceedsthecriticalthresholD.
C.ThecriticalthresholdisignoredandalertswouldbegeneratedwhenspaceusageexceedsthewarningthresholD.
D.Boththresholdvaluesareusedandalertsaregeneratedwhenspaceusageexceedstherespectivethresholdvalues.