Regarding the description of the cloud hard disk service in the FusionSphere cloud data center, which of the following is incorrect?

Regarding the description of the cloud hard disk service in the FusionSphere cloud data center, which of the following is incorrect?
A . When creating a cloud host, use an image with the option of "Quick Provisioning of Virtual Machines" checked, and the system disk does not support expansion.
B . Cloud hard disk does not support online expansion, you need to uninstall the cloud hard disk from the host first
C . When the available partition type is "FusionCompute" and "KVM", the system disk can be unmounted from the cloud host
D . Cloud hard drives do not support changing storage SLAs

Answer: D