Explanation

AWS Outposts is the correct choice because:

• Local Data Processing: AWS Outposts brings AWS infrastructure, services, and APIs to on-premises locations like factories
• Low Latency Requirements: It provides low-latency access to on-premises systems and applications
• Local Storage: Can store data locally while maintaining connection to AWS cloud
• Application Deployment: Allows running applications with local system interdependencies
• Multiple Factory Support: Can be deployed across multiple factory locations

Why not the other options:

• AWS IoT Greengrass: Primarily for IoT device management and edge computing, not full application hosting
• AWS Lambda: Serverless function service that runs in AWS cloud, not suitable for on-premises low-latency requirements
• AWS Snowball Edge: Data transfer device, not designed for ongoing application hosting and processing

AWS Outposts provides the hybrid cloud solution needed for factory environments requiring local processing with AWS services.