Which options are necessary to ensure that authentication is supported by the third-party identity provider (IdP)?

You want to use the gcloud command-line tool to authenticate using a third-party single sign-on (SSO) SAML identity provider.

Which options are necessary to ensure that authentication is supported by the third-party identity provider (IdP)? (Choose two.)
A . SSO SAML as a third-party IdP
B. Identity Platform
C. OpenID Connect
D. Identity-Aware Proxy
E. Cloud Identity

Answer: A,C

Explanation:

Reference: https://cloud.google.com/identity/solutions/enable-sso