Which two role combinations are represented by the systems in the scenario?

Universal containers (UC) built a customer Community for customers to buy products, review orders, and manage their accounts. UC has provided three different options for customers to log in to the customer Community: salesforce, Google, and Facebook.

Which two role combinations are represented by the systems in the scenario? Choose 2 answers
A . Google is the service provider and Facebook is the identity provider
B. Salesforce is the service provider and Google is the identity provider
C. Facebook is the service provider and salesforce is the identity provider
D. Salesforce is the service provider and Facebook is the identity provider

Answer: B,D