An administrator has created a VPC with the following subnets: 10.

The most professional way to evaluate this question is to map the symptom to the Nutanix feature responsible for that function rather than reacting to secondary details in the prompt. The correct response is C, meaning “Assign a NAT External Network & ERP 10.1.0.0/22”. Externally Routable Prefixes determine which overlay prefixes are advertised beyond the VPC. If the ERP does not cover the workload subnet, upstream devices never learn a valid return path, even when the local VPC appears healthy. In practice, this falls into virtual network design: VPC structure, subnet type, external network behavior, routing intent, and address exposure are what determine the result. By contrast, A is not appropriate because NAT changes addressing behavior and does not solve the routing or policy condition described in the scenario. B is not appropriate because NAT changes addressing behavior and does not solve the routing or policy condition described in the scenario. That is the underlying Nutanix principle being validated: solve the issue at the feature that owns the behavior, not by changing unrelated infrastructure settings that happen to sound network-oriented. A strong exam habit is to ask which Nutanix construct would have to change for.