Which option will successfully configure the hosts to use a newly-created vSphere Distributed Switch (vDS) with a single port group?

A vSphere cluster consists of three ESXi 5.5 hosts. Each host has five powered-on virtual
machines. Which option will successfully configure the hosts to use a newly-created vSphere
Distributed Switch (vDS) with a single port group?

A.
Using the vSphere Web Client, for each host, select a host, click Manage, click Networking, and
click the icon to Add host networking.

B.
Using the vSphere Web Client, for each host, select a host, right-click the host, select All
vCenter Actions, and then select Add Networking.

C.
Using the vSphere Web Client, select each of the running virtual machines and edit the settings
of the network adapters.

D.
Using the vSphere Web Client, select the newly created VDS and click Add and Manage Hosts.