From a Nutanix exam perspective, this question is really testing whether the administrator understands the control point that actually governs the behavior shown in the scenario. The correct response is A, meaning
"Create the requisite Authorization Polices from custom or built-in roles.". The winning option is the one tied to the native Nutanix object or control that governs the outcome described in the scenario. This is a Flow policy design question, so categories, secured entities, rule direction, policy mode, and policy precedence matter more than simple IP connectivity assumptions. By contrast, B does not fit because it targets a different layer of the Nutanix networking and security stack than the one causing the outcome here. C does not fit because it targets a different layer of the Nutanix networking and security stack than the one causing the outcome here. The key takeaway is that Flow is intentionally modular. Networking objects determine reachability, security objects determine permission, and lifecycle steps determine supportability. Mixing those layers usually produces the distractor answers. A strong exam habit is to ask which Nutanix construct would have to change for the symptom or requirement to change. That mental shortcut usually separates.