Answer – D
Options A, B and C are invalid because, for such a requirement, you have to use the Multivalue answer resource record.
The AWS Documentation mentions the following.
Multivalue answer routing lets you configure Amazon Route 53 to return multiple values, such as IP addresses for your web servers, in response to DNS queries. You can specify multiple values for almost any record, but multivalue answer routing also lets you check the health of each resource. So, Route 53 returns only value for healthy resources. It`s not a substitute for a load balancer, but the ability to return multiple health-checkable IP addresses is a way to use DNS to improve availability and load balancing.
For more information on Routing policy’s, please refer to the below URL
https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html