Which of the Following Statements Describing the Instantiation of a VM

Multiple Choice

Which of the following statements describing the instantiation of a VM in OpenStack is CORRECT?

A) Instantiation of a VM is always initiated through the Horizon GUI.
B) The Neutron L3 agent uses libvirt on the hypervisor to instantiate and tear down VMs.
C) A Radius server is used to verify whether a user has the required privileges to instantiate a VM.
D) The Nova scheduler selects the host on which the VM is to be instantiated.