单项选择题IfaninvalidusernameandpasswordisenteredontheEchoClient,whichlogfileswillbethefirsttorecordthis(assumingallcomponentshavenecessaryloggingandtracingenabled)?()
A.the PDACLD authentication audit log
B.the EchoClient log during token generation
C.IBM Tivoli Federated Identity Manager (ITFIM) tracing on AppSrv01 during token validation
D.ITFIM tracing on AppSrv03 during an attempted JAAS login