With CEF, prefixes that require exception processing can be cached with one of which four special adjacencies? (Choose four)

A.
Forward

B.
Null

C.
Glean

D.
Kick

E.
Discard

F.
Drop

Explanation:

Reference:
http://www.cisco.com/en/US/docs/ios/12_1/switch/configuration/guide/xcdcef.html