which configuration is required on router R2 to advertise labels corresponding to direct routes?

Refer to the Exhibit.

A customer is not seeing direct routes in the LDP database.
Referring to the exhibit, which configuration is required on router R2 to advertise labels
corresponding to direct routes?

A.
set protocols ldp export connected-routes

B.
set protocols ldp egress-policy connected-routes

C.
set protocols ldp import connected-routes

D.
set protocols ldp igp-synchronization

Explanation: