Which command allows you to verify the encapsulation type (CISCO or IETF) for a Frame Relay link?

A.
show frame-relay lmi

B.
show frame-relay map

C.
show frame-relay pvc

D.
show interfaces serial

Explanation:
map will show frame relay encapsulation (cisco or ietf)
http://www.cisco.com/en/US/docs/ios/12_2/wan/command/reference/wrffr4.html#wp1029343
“show frame-relay map” will show frame relay encapsulation type (CISCO or IETF)