In VMware Virtualization Environment, If the User Wants to Migrate

In VMware virtualization environment, if the user wants to migrate a VM from one ESXi host to another with no downtime, (_) can be used for this; if the user wants to migrate virtual machine storage disk files to another storage array with no downtime, (_) can be used.

A) vMotion, Storage DRS
B) Storage vMotion, Storage DRS
C) vMotion, HA
D) vMotion, Storage vMotion