Which statement about TDP/LDP neighbors is true?

A.
Neighbor discovery is done automatically under both TDP and LDP.

B.
Neighbor configuration is done manually when using TDP. It is automatic when using LDP.

C.
On point-to-point links, neighbor assignment is not needed. However, on broadcast links, you must assign neighbors as you do in BGP.

D.
Because LDP operates under TCP, neighbors must be assigned. Because TDP uses UDP it operates in a broadcast mode and does not use neighbors.