Which virtual machine settings should you configure?

Your network contains two Hyper-V hosts that run Windows Server 2012. The Hyper-V hosts contains several
virtual machines that run Windows Server 2012.
You install the Network Load Balancing feature on the virtual machines.
You need to configure the virtual machines to support Network Load Balancing (NLB).
Which virtual machine settings should you configure?

A.
Port mirroring

B.
DHCP guard