Refer to the exhibit. Give this outpu

Refer to the exhibit. Give this output for SwitchC, what should the network administrator's next action be?（）

• ACheck the trunk encapsulation mode for SwitchC's fa0/1 port.
• BCheck the duplex mode for SwitchC's fa0/1 port.
• CCheck the duplex mode for SwitchA's fa0/2 port.
• DCheck the trunk encapsulation mode for SwitchA's fa0/2 port.