When integrating this SP with Salesforce, which use case is the determining factor when choosing OIDC or SAML?

A service provider (SP) supports both Security Assertion Markup Language (SAML) and OpenID Connect (OIDC).

When integrating this SP with Salesforce, which use case is the determining factor when choosing OIDC or SAML?
A . OIDC is more secure than SAML and therefore is the obvious choice.
B. The SP needs to perform API calls back to Salesforce on behalf of the user after the user logs in to the service provider.
C. If the user has a session on Salesforce, you do not want them to be prompted for a username and password when they login to the SP.
D. They are equivalent protocols and there is no real reason to choose one over the other.

Answer: B