The suggested answer is D.
When restoring VMware thick provisioned VMs, and the physical proxies used for restoration have access to the Fibre Channel datastores, the default transport mode used is Direct Storage Access. This mode leverages the direct SAN (Storage Area Network) access for performing data operations directly between the datastores and the proxy servers, bypassing the need through the ESXi host, which optimizes the performance and reduces the load on the network.