A company migrated their entire data/center to Google Cloud Platform. It is running thousands of instances across multiple projects managed by different departm...

A company migrated their entire data/center to Google Cloud Platform. It is running thousands of instances across multiple projects managed by different departments. You want to have a historical record of what was running in Google Cloud Platform at any point in time.
What should you do?

A. Use Resource Manager on the organization level. B. Use Forseti Security to automate inventory snapshots. C. Use Stackdriver to create a dashboard across all projects. D. Use Security Command Center to view all assets across the organization.