A company rehosted a web application on Amazon EC2 instances in a single AWS Region and wants to redesign it to be highly available and fault tolerant. Traffic must reach all running EC2 instances randomly. Which combination of steps should the company take to meet these requirements? (Choose two.)

To achieve high availability and fault tolerance, the application needs to be distributed across multiple Availability Zones (AZs). Launching four EC2 instances, with two in one AZ and two in another, ensures redundancy. If one AZ experiences an outage, the application can continue to serve traffic from the other AZ. A Route 53 multivalue answer routing policy is ideal for distributing traffic randomly to multiple healthy resources. It returns up to eight healthy records, allowing clients to choose one, effectively distributing traffic across the instances. An Amazon Route 53 weighted routing policy distributes traffic based on assigned weights, not randomly across all running instances. A failover routing policy is for active-passive configurations, not for distributing traffic to all active instances. Launching three EC2 instances (two in one AZ, one in another) provides less redundancy than four instances, making it less fault-tolerant.