Which option is correct to configure the maximum transmit packet size of a Fast Ethernet interface?（）

• A、set interfaces fe-0/0/0 unit 0 ethernet-options mtu 1200
• B、set interfaces fe-0/0/0 mtu 1200
• C、set interfaces fe-0/0/0 unit 0 mtu 1200
• D、set interfaces fe-0/0/0.0 mtu 1200