which technique should the administrator use to accomplish the migration?

The vSphere administrator needs to migrate a virtual machine from one ESXi 5.5 host to another
ESXi 5.5 host. The virtual machine has a virtual disk that is stored in local storage.
Assuming only the vSphere Essentials licensing is in place, which technique should the
administrator use to accomplish the migration?

A.
vMotion migration

B.
Cold migration