How should UC’S architect enable this behavior?

Universal containers (UC) has multiple salesforce orgs and would like to use a single identity provider to access all of their orgs .

How should UC’S architect enable this behavior?
A . Ensure that users have the same email value in their user records in all of UC’s salesforce orgs.
B . Ensure the same username is allowed in multiple orgs by contacting salesforce support.
C . Ensure that users have the same Federation ID value in their user records in all of UC’s salesforce orgs.
D . Ensure that users have the same alias value in their user records in all of UC’s salesforce orgs.

View Answer

Answer: C