An administrator attempts to create a Thick Provisioned Virtual Disk (VMDK) on an NFS datastore; but it fails. Which two reasons would explain the failure? (Choose two.)

NFS 3 storage servers that do not support VAAI Hardware Acceleration cannot fulfill the 'Full File Clone' primitive that ESXi uses to offload thick provisioning operations to the array, causing the creation to fail.

VMware vSphere does not support thick provisioned VMDKs on NFS 4.1 datastores at all; NFS 4.1 only allows thin provisioned virtual disks, making thick provisioning impossible regardless of array capabilities.

NFS datastores can support thick provisioned VMDKs when the NFS 3 server provides VAAI Hardware Acceleration, so this blanket statement is technically incorrect.

The provisioning type of the physical underlying NFS volume is independent of which VMDK provisioning formats can be created on the resulting datastore.