You are deploying an application that runs on Compute Engine instances. You need to determine how to expose your application to a new customer. You must ensure that your application meets the following requirements:
• Maps multiple existing reserved external IP addresses to the instance
• Processes IP Encapsulating Security Payload (ESP) traffic
What should you do?

A. Configure a target pool, and create protocol forwarding rules for each external IP address. B. Configure a backend service, and create an external network load balancer for each external IP address. C. Configure a target instance, and create a protocol forwarding rule for each external IP address to be mapped to the instance. D. Configure the Compute Engine instances’ network interface external IP address from None to Ephemeral. Add as many external IP addresses as required.