The applicable scenarios for DRS dynamic resource scheduling in Fusionsphere are (multiple choices):

Automatically migrate virtual machines to several centralized servers at night, and power off other physical machines
Load balancing in the cluster to avoid excessive resource occupancy of some physical machines
On the same physical machine, release the memory of the idle virtual machine to the virtual machine with higher usage
When a physical machine remembers that the load is too high, migrate some virtual machines to other physical machines with lower load

Answer(s): B,D