A company is building a generative AI application to provide step-by-step instructions for brewing specialty coffee. The application uses a multi-stage prompt chain that retrieves relevant coffee bean roasting logs from a knowledge base and then generates brewing recommendations. The company needs to ensure low latency, stability, and validated safety controls for production deployment across multiple AWS Regions. Requirements: • Latency must be under 1 second per request, and the company has observed degradation during traffic spikes. • The application must block unsafe or hallucinated recommendations (e.g., dangerous brewing temperatures). • Output consistency for identical inputs must be 99.5% or higher across Regions. Which solution meets these requirements?