Your company recently migrated thousands of virtual machines from on-premise data center to Google Cloud Compute Engine (GCE) on-demand instances using Migrate for Compute Engine. While the migration has been without issues, the compute costs have been much higher than expected after migration to GCE. Your manager has asked you to identify a way to minimize the GCE costs. The production environment is critical to both your business and customers and must service requests 24*7. The development and test environments are critical during standard working hours, Monday to Friday 9am to 6pm, with no use outside these hours. How can you optimize GCE costs while adhering to Google Recommended practices? (Select 3)