Refer to the exhibit. 

An engineer is configuring Inter-VSAN routing for two Cisco MDS switches. The FSPF cost between the switches is 500, and the Cisco MDS core virtualizes an IVR NAT domain as shown. Which statement about the topology is correct? 

Answer options:

A. The MDS-Core simulates an IVR NAT, and the FSPF cost is 500.
B. The MDS-Core simulates an IVR NAT, and increases the cost to 501.
C. The MDS-Core simulates an IVR NAT, and decreases the cost to 400.
D. The MDS-Core simulates an IVR NAT, and increases the cost to 600.

B