A company will deploy its application on an Amazon Aurora PostgreSQL Serverless v2 cluster that will receive large amounts of traffic. The company wants to optimize cluster storage performance cost-effectively as load increases. Which storage configuration meets these requirements MOST cost-effectively?

Aurora I/O-Optimized is the most cost-effective solution for applications with high I/O operations, like those receiving large amounts of traffic. This configuration charges for storage and compute, but not for I/O operations, making it ideal when I/O costs would otherwise be significant. Aurora Standard charges for storage, compute, and I/O operations, which would be more expensive with high traffic. Provisioned IOPS and General Purpose are storage types for Amazon EBS volumes, not directly configurable for Aurora storage, which is a managed service with its own storage architecture.