Which statement describes how the identity is made available by Oracle Web Services Manager (OWSM)?

In your solution, a web service client needs to invoke a series of three web services in
support of a single transaction. The third web service needs the identity of the original web
service client. Which statement describes how the identity is made available by Oracle Web
Services Manager (OWSM)?

A.
The transaction manager accesses an internal table that maintains credentials used
to invoke each individual web service in the chain.

B.
OWSM stores a SAML token from the first web service invocation in a database
table, and that table is accessed by subsequent web services in the chain to retrieve
identity.

C.
Each web service in the chain does its own authentication so the third web service
handles its own identity checking.

D.
OWSM sets the user in the Java Authentication and Authorization (JAAS) Subject
when the first web service successfully authenticates, and the Java Subject is used by
subsequent web services to access the identity.