A financial services client is undertaking a data center modernization project. Their primary objectives are to shift from a CapEx to an OpEx model, improve infrastructure agility to respond to market changes, and ensure compliance with strict data sovereignty regulations. The current environment consists of a mix of aging HPE and third-party servers running critical Oracle database workloads and a growing containerized application portfolio managed by an in-house team. The client's IT director is skeptical about consumption models, fearing loss of control and unpredictable costs. They require a solution that provides on-premises control with cloud-like economics and self-service capabilities for their DevOps team. A key requirement is to have a buffer capacity of 25% for compute and storage to handle unexpected trading volume spikes, but they only want to pay for this buffer when it is utilized. Which HPE GreenLake solution design best addresses all the client's primary objectives and concerns?