You want to monitor the CPU utilization of a fleet of Compute Engine instances. If the average CPU utilization exceeds 80% for more than 5 minutes, you want the operations team to receive a notification in their Slack channel. How should you configure this?

Write a bash script on each VM that checks CPU usage and uses curl to send a message to the Slack API.

Create a log sink in Cloud Logging to export CPU metrics to Pub/Sub, and trigger a Cloud Function to post to Slack.

Create an Alerting Policy in Cloud Monitoring, set the condition to CPU utilization > 80% for 5 minutes, and configure a Slack notification channel.

Configure the Managed Instance Group autoscaler to send a notification when it scales up.