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