Which two optimal actions should the Architect take to troubleshoot the issue?

An Architect has configured a SAML-based SSO integration between Salesforce and an external Identity provider and is ready to test it. When the Architect attempts to log in to Salesforce using SSO, the Architect receives a SAML error .

Which two optimal actions should the Architect take to troubleshoot the issue?
A . Ensure the Callback URL is correctly set in the Connected Apps settings.
B. Use a browser that has an add-on/extension that can inspect SAML.
C. Paste the SAML Assertion Validator in Salesforce.
D. Use the browser’s Development tools to view the Salesforce page’s markup.

Answer: B,C