In which scenario will vSphere DRS balance resources when set to Fully Automated?
A.
Hosts with only shared storage
B.
Hosts are part of a vSphere HA cluster
C.
Power Management is set to Balanced on hosts
D.
Hosts with shared or non-shared storage
A indeed.
See https://pubs.vmware.com/vsphere-4-esx-vcenter/index.jsp?topic=/com.vmware.vsphere.resourcemanagement.doc_41/creating_a_drs_cluster/c_drs_cluster_prerequisites.html