You are creating a web application that runs in a Compute Engine instance and writes a file to any user's Google Drive. You need to configure the application to authenticate to the Google Drive API. What should you do?

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.