What should you do?

You are using Stackdriver to monitor applications hosted on Google Cloud Platform (GCP). You recently deployed a new application, but its logs are not appearing on the Stackdriver dashboard. You need to troubleshoot the issue.

What should you do?
A . Confirm that the Stackdriver agent has been installed in the hosting virtual machine.
B . Confirm that your account has the proper permissions to use the Stackdriver dashboard.
C . Confirm that port 25 has been opened in the firewall to allow messages through to Stackdriver.
D . Confirm that the application is using the required client library and the service account key has proper permissions.

Answer: A

Explanation:

https://cloud.google.com/monitoring/agent/monitoring/troubleshooting#checklist