Refer to the exhibit. A Layer 3 LACP EtherChannel is being used to exchange FWSM state information. What can be done to increase EtherChannel reliability?

A.
Use a Layer 2 EtherChannel.

B.
Add a link to the EtherChannel.

C.
Use a Layer 3 PAgP EtherChannel.

D.
Put each link on a different line card.

E.
Put each link in a different port group.