A company recently migrated its web application to AWS by rehosting the application on Amazon EC2 instances in a single AWS Region. The company wants to redesign its application architecture 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.)
ACreate an Amazon Route 53 failover routing policy.
BCreate an Amazon Route 53 weighted routing policy.
CCreate an Amazon Route 53 multivalue answer routing policy.
DLaunch three EC2 instances: two instances in one Availability Zone and one instance in another Availability Zone.
ELaunch four EC2 instances: two instances in one Availability Zone and two instances in another Availability Zone.