During an upgrade, the ESXi 6.x installer finds an existing version of ESXi and a VMFS3 volume.
No virtual machines exist on the host or VMFS3 volume. The requirement is to upgrade to VMFS5.
Which option should be chosen to meet this requirement?
A . Upgrade ESXi and preserve the VMFS datastore
B . Install ESXi and preserve the VMFS datastore
C . Install ESXi and overwrite the VMFS datastore
D . Upgrade ESXi and overwrite the VMFS datastore