A network engineer is deploying an application on an Amazon EC2 instance. The instance is reachable within the VPC through its private IP address and from the internet using an elastic IP address. Clients are connecting to the instance over the Internet and within the VPC, and the application needs to be identified by a single custom Fully Qualified Domain Name that is publicly resolvable `"`˜app.example.com'. Instances within the VPC should always connect to the private IP to minimize data transfer costs. How should the engineer configure DNS to support these requirements?
Select one answer.
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