Which Virtual Machine cannot be protected by the Distributed Firewall?
A.
A Virtual Machine connected to a vDS Portgroup running on an ESXi 5.1 host.
B.
A Virtual Machine connected to a vSS Portgroup running on an ESXi 5.5 host.
C.
A Virtual Machine connected to a vDS Portgroup running on an ESXi 5.5 host.
D.
A Virtual Machine connected to a logical switch running on an ESXi 5.1 host.