What are two functions of a custom mapping module?（）A、records the token assertionB、maps a STSUUSER input to a SAML tokenC、looks up attributes in an external data sourceD、maps a user’s alias during the account linkage operation in SAML 2.0 and Liberty 1.2 

What are two functions of a custom mapping module?（）

• A、records the token assertion
• B、maps a STSUUSER input to a SAML token
• C、looks up attributes in an external data source
• D、maps a user’s alias during the account linkage operation in SAML 2.0 and Liberty 1.2 protocol
• E、maps a GUI XML attributes into UI controls that are used by the IBM Tivoli Federated Identity Manager Console to collect the input data