Which AWS service is a highly available and scalable DNS web service?

Explanations:

Amazon VPC (Virtual Private Cloud) is a service for provisioning a logically isolated network but does not provide DNS services.

Amazon CloudFront is a content delivery network (CDN) that caches content globally but is not a DNS service.

Amazon Route 53 is a highly available and scalable DNS web service that provides domain registration and routing.

Amazon Connect is a cloud-based contact center service and does not provide DNS functionality.