An administrator is tasked with deploying a new VMware vSAN-backed vSphere cluster.

In VMware Cloud Foundation, lifecycle management boundaries are defined at the workload domain level. If independent lifecycle and scaling control is required, the cluster must be deployed as a separate workload domain.

VCF 9.0 supports workload domains that either:

Use a dedicated NSX instance, or

Share an existing NSX Manager instance.

Because the requirement only states independent lifecycle and scaling (not network isolation), the correct and efficient approach is to:

Deploy the new cluster as a new workload domain with shared NSX.

Deploying within an existing workload domain (A or B) would tie lifecycle operations together.

Deploying with a new NSX instance (C) is unnecessary unless full NSX isolation is required.

Thus, the correct action is D.