With unknown trial demand and a requirement to minimize GCP costs per Google best practices, which cost strategy should you adopt?

The correct option is "Utilize free tier and sustained use discounts. Provide training to the team about service cost management." because with unknown trial demand, committed use discounts (CUDs) are risky as they require a long-term commitment to a specific resource usage, which might lead to overspending if demand is lower than anticipated. Sustained use discounts (SUDs) are automatically applied for running resources for a significant portion of the month and don't require upfront commitment, making them ideal for unpredictable workloads. The free tier helps minimize initial costs. Providing training to the team empowers them to make cost-aware decisions, which is more scalable and effective than relying on a single staff position for service cost management, especially in a dynamic trial environment.