What are two elements that must be configured to enable LDP? (Choose two.)
A.
Add the relevant interfaces under the [edit protocols ldp] hierarchy.
B.
Add the relevant interfaces under the [edit protocols rsvp] hierarchy.
C.
Add the family iso statement to the relevant interfaces under the [edit interfaces] hierarchy.
D.
Add the family mpls statement to the relevant interfaces under the [edit interfaces]
Explanation: