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You are transitioning a legacy game to a new game project in Google Cloud. You need to ensure that a service account (SA) can access both the legacy game's and the new game's Google Cloud resources with the required Firebase Admin permissions. What steps should you take to achieve this?
A
Create a new service account in the legacy game's Google Cloud project, add it to the new game's IAM page, and give it the Firebase Admin role in both projects.
B
Create a new service account in the new game's Google Cloud project, and give necessary permissions in both projects.
C
Create a service account (SA) in the legacy game's Google Cloud project, add this SA in the new game's IAM page, and then give it the Firebase Admin role in both projects.
D
Create a service account in both projects independently and manage their roles separately.