If an invalid username and password is entered on the EchoClient, which log files will be the first to record this (assuming all components have necessary logging and tracing enabled)?（）

• 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