What are the functions of CNA in FusionCompute? (Multiple choice)

What are the functions of CNA in FusionCompute? (Multiple choice)
A . Manage virtual machines on compute nodes.
B . Manage computing, storage and network resources on computing nodes.
C . Manage the life cycle of virtual machines in the cluster and the distribution and migration of virtual machines on computing nodes
D . Provide virtual computing functions.

Answer: ABD