You have a development project with appropriate IAM roles defined. You are creating a production project and want to have the same IAM roles on the new project, using the fewest possible steps. What should you do?

A. Use gcloud iam roles copy and specify the production project as the destination project.

B. Use gcloud iam roles copy and specify your organization as the destination organization.

C. In the Google Cloud Platform Console, use the ‘create role from role’ functionality.
D. In the Google Cloud Platform Console, use the ‘create role’ functionality and select all applicable permissions.

Reference: https://cloud.google.com/sdk/gcloud/reference/iam/roles/copy