Which of the following descriptions about mirroring in FusionSphere is correct?

Supported vhd format images can only be produced and obtained through FusionSphere

The virtual machine template created by FusionCompute only contains vhd files

When using FusionCompute to make a virtual machine to obtain an image, only one disk can be configured for the virtual machine

Only the vhd file generated by the system disk of the virtual machine can be selected for the registration image