A company will run a gaming application on Amazon EC2 instances in an Auto Scaling group. The application uses UDP packets. The company must allow the application to scale out and in as traffic varies. What should a solutions architect do to meet these requirements?

A Network Load Balancer (NLB) is the correct choice because it operates at Layer 4 (Transport Layer) and supports UDP traffic, which the gaming application requires. NLBs are designed for extreme performance and static IP addresses, making them suitable for gaming workloads that demand low latency and high throughput. Attaching it to an Auto Scaling group allows the application to scale dynamically based on demand. An Application Load Balancer (ALB) operates at Layer 7 (Application Layer) and does not support UDP traffic, making it unsuitable for this requirement. Amazon Route 53 with a weighted policy is a DNS service for traffic routing, not a load balancer for EC2 instances in an Auto Scaling group. A NAT instance with port forwarding is primarily for allowing private instances to access the internet and is not designed as a scalable load balancer for incoming application traffic.