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How should you configure authentication for a web application running on Compute Engine that needs to write files to users' Google Drive via the Google Drive API?
A
Use an OAuth Client ID that uses the https://www.googleapis.com/auth/drive.file scope to obtain an access token for each user.
B
Use an OAuth Client ID with delegated domain-wide authority.
C
Use the App Engine service account and https://www.googleapis.com/auth/drive.file scope to generate a signed JSON Web Token (JWT).
D
Use the App Engine service account with delegated domain-wide authority.