Explanation

Amazon Route 53 is AWS's highly available and scalable Domain Name System (DNS) web service. It is specifically designed to provide:

• High Availability: Route 53 uses a global network of DNS servers across multiple AWS regions
• Scalability: Automatically scales to handle large volumes of DNS queries
• Reliability: Provides 100% availability SLA
• DNS Management: Full DNS service including domain registration, DNS routing, and health checking

Why other options are incorrect:

• Amazon Lightsail: Simplified virtual private servers, not a DNS service
• AWS Amplify Hosting: Static web hosting service for web applications
• Amazon S3: Object storage service, not designed for DNS management

Route 53 is the correct choice for DNS requirements in AWS workloads.