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A company has been evolving towards creating sandbox environments for developers. The entire infrastructure is managed by AWS CloudFormation to easily recreate stack. An RDS database is managed by CloudFormation in a "dev" environment and has been costing a lot, as it has been mirroring the production setup. After running cost analysis reports, you realize that the storage layer (io1) accounts for 90% of the cost, and the remaining 10% is used by EC2 instance. The CloudWatch metrics report that both the EC2 instance and the EBS volume are under-utilized. The CloudWatch metrics show the EBS volume does frequent IO bursts, but the database is rarely steadily used.As a Solutions Architect, what do you propose, to reduce costs drastically?Keep the EBS volume to io1 and reduce the IOPSConvert the Amazon EC2 instance EBS volume to gp2Change the Amazon EC2 instance type to something much smallerDon't use a CloudFormation template to create the database as the CloudFormation service incurs greater service charges

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