What should the engineer do to fix this issue?

An engineer deploys an FX2 and plugs cables from GB1 and STK/GB2 into the management network switch for path and NIC redundancy. When the chassis is powered up, the management network is adversely affected.

What should the engineer do to fix this issue?
A . Plug the CMC Redundancy Dongle into GB1 and STK/GB2
B . Configure a separate IP address for GB2
C . Turn off STP on the management network switch
D . Change the Management Port 2 setting to Redundant

Answer: D