A company runs a fleet of eight EC2 web servers spread across two Availability Zones, each with a public IP. The application is a lightweight internal tool that does not use a load balancer to keep costs low. The team wants Route 53 to return multiple healthy server IPs in response to DNS queries and automatically stop returning the IP of any server that fails a health check, distributing client traffic across the remaining healthy servers. Which Route 53 routing policy should they configure?