A virtual machine is unable to communicate with another virtual machine. Both virtual
machines are connected to the Production port group on the same virtual switch and are
running on the same host. Which configuration is causing the inability of the virtual
machines to communicate?

A.
The speed and duplex settings for the virtual machine vmnics do not match.

B.
LLDP was enabled instead of CDP for the vSphere Distributed Switch.

C.
Promiscuous Mode has been set to Allow on the Production port group.

D.
The Production port group is configured to use a secondary PVLAN.