Which AWS service enables companies to deploy an application close to end users?

Explanations:

Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations globally, enabling applications to be deployed closer to end users for faster delivery.

AWS Auto Scaling automatically adjusts the number of EC2 instances based on demand, but it does not directly relate to deploying applications closer to users.

AWS AppSync is a service for building data-driven applications and managing GraphQL APIs, not specifically for deploying applications closer to end users.

Amazon Route 53 is a scalable DNS web service that directs user requests to the appropriate endpoints, but it does not inherently deploy applications closer to users.