You've setup and tested several custom roles in your development project. What is the fastest way to create the same roles for your new production project?

You've setup and tested several custom roles in your development project. What is the fastest way to create the same roles for your new production project?

A. Recreate them in the new project. B. Use the gcloud iam copy roles command and set the destination project. C. In GCP console, select the roles and click the Export button. D. Use the gcloud iam roles copy command and set the destination project.