The correct answer is B because the IP address in question is internal and must be reserved as a static internal IP address. This action prevents the address from being dynamically allocated to other resources. Static internal IPs are reserved from the private RFC 1918 IP range configured in the subnet and assigned to resources as needed, ensuring the same IP address can be used for the same resource even after deletion and recreation. Options A and D are incorrect as the IP address is an RFC 1918 address, requiring it to be an internal static IP. Option C is incorrect because ephemeral internal IP addresses are released back into the network pool when the VM instance is stopped and restarted or terminated, making them unsuitable for this scenario.