What is a valid configuration for the OpenFlow instances?

A network administrator is setting up OpenFlow settings on an HP ProVision switch with VLANs 1, 2, 3, and 4. The switch reaches the HP VAN SDN Controller on VLAN 1. The administrator wants to enable OpenFlow on VLANs 2 and 3 but not on VLAN 4.

What is a valid configuration for the OpenFlow instances?
A . OpenFlow instance 1 mapped to VLAN 1; OpenFlow instance 2 mapped to VLAN 2; OpenFlow instance 2 mapped to VLAN 3
B . OpenFlow instance 1 mapped to VLAN 2; OpenFlow instance 2 mapped to VLAN 3
C . OpenFlow instance 1 mapped to VLAN 1 and 2; OpenFlow instance 2 mapped to VLAN 1 and 3
D . Aggregate OpenFlow instance

Answer: B