A company runs several Amazon RDS for Oracle On-Demand DB instances with high utilization in member accounts of an AWS Organizations organization. The finance team (with access to the management and member accounts) wants to optimize costs using AWS Trusted Advisor. Which combination of steps will meet these requirements? (Choose two.)

For AWS Organizations, Trusted Advisor recommendations for all member accounts are consolidated and accessible from the management account. This centralizes cost optimization efforts. Since the company has high utilization RDS instances, the most effective cost optimization strategy is to purchase Reserved Instances. Trusted Advisor's "Amazon RDS Reserved Instance Optimization" check specifically identifies opportunities to save money by converting On-Demand instances to Reserved Instances. Reviewing Trusted Advisor recommendations in member accounts would be inefficient as the management account provides a consolidated view. "Amazon RDS Idle DB Instances" would not apply here because the instances have high utilization. Compute optimization checks are for EC2, not RDS.