What is the recommended practice regarding UDLD when implementing it in all fiber-optic LAN ports?（）

• A、Adjust the default hello timers to three seconds for aggressive mode.
• B、Enable it in global mode and on every interface you need to support.
• C、Enable it in global mode to support every individual fiber-optic interface.
• D、Enable it to create channels containing up to eight parallel links between switches.
• E、Enable it in global mode to support every individual fiber optic and Ethernet interface.