An administrator needs two vCenter Servers to be visibile within a single vSphere Web Client session. Which two vCenter Server and Platform Services Controller (PSC) configurations would accomplish th

A single PSC serving as the SSO authority for two vCenter Servers places both instances in the same SSO domain, which is the sole requirement for Enhanced Linked Mode - both vCenter Servers automatically appear together in a single vSphere Web Client session.

Two PSCs replicated or federated within the same Single Sign-On domain each with one registered vCenter Server also satisfies Enhanced Linked Mode requirements, since shared SSO domain membership is what enables unified Web Client visibility across multiple vCenter instances.

In vSphere 6.x, Enhanced Linked Mode is inherent when vCenter Servers share a PSC and SSO domain - no separate 'configure Linked Mode' step exists, making this option an inaccurate description of how the feature is enabled.

As stated, this choice is identical to B; if intended to represent PSCs in separate SSO domains, those vCenter Servers would not share SSO trust and could not be managed together in a single Web Client session.