You developed a Python script that retrieves information from files that are uploaded to Cloud Storage and writes the information to Bigtable. You have completed testing on your local environment and created the python-script service account with the Bigtable User IAM role. You want to deploy the code with the appropriate authentication while following Google-recommended practices. What should you do?

A. 1. Deploy your code to Cloud Functions. Create a Cloud Storage trigger.
2. Configure IAM binding for authentication. B. 1. Deploy your code to Cloud Functions. Create a Cloud Storage trigger.
2. Create a service account key for authentication C. 1. Deploy your image to Cloud Run. Create a trigger in Cloud Scheduler that triggers the service every minute.
2. Configure IAM binding for authentication. D. 1. Deploy your image to Cloud Run. Create a trigger in Cloud Scheduler that triggers the service every minute.
2. Create a service account key for authentication.