What is the default trace file (for Linux) that is used for the initial debugging of IBM Tivoli Federated Identity Manager Runtime?（）

A./opt/IBM/FIM/logs/< ITFIM Domain Name>/tivoli-common/FBT/logs/msg.log

B./opt/IBM/FIM/logs/< ITFIM Domain Name>/tivoli-common/FBT/logs/trace.log

C./opt/IBM/WebSphere/AppServer/profiles//logs//trace.log

D./opt/IBM/WebSphere/AppServer/profiles//logs//SystemOut.log