A company serves a non-HTTP TCP application from two AWS Regions. Worldwide clients require a stable pair of anycast IP addresses and routing over the AWS global network to healthy regional endpoints. Which service best meets these requirements?

1. A single regional NAT gateway exposed as the global application's inbound endpoint.
2. AWS Global Accelerator with the appropriate regional endpoints and health-based routing.
3. CloudFront, configured to proxy arbitrary TCP ports without an HTTP protocol.
4. Route 53 latency records alone, which create a stable pair of anycast application IP addresses.