which two interfaces?

The virtual machine log rotation size can be changed for all VMs by which two interfaces? (Choose two.)

A.
PowerCLI

B.
vSphere Web Client

C.
ESXi host client

D.
esxcli

Explanation:
http://buildvirtual.net/using-powercli-to-set-log-rotation-options-for-a-group-of-virtual-machines/