Which two features should an administrator use to protect a VMware vCenter Server Appliance from host and hardware failures? (Choose two.)

Which two features should an administrator use to protect a VMware vCenter Server Appliance from host and hardware failures? (Choose two.)
A . VMware Distributed Power Management
B . vCenter High Availability
C . vSphere High Availability
D . vSphere Fault Tolerance
E . VMware vSphere Distributed Resource Scheduler

Answer: B,D