A Layer 3 VPN customer opened a case that reports connectivity loss with remote sites. An operations engineer realized this connectivity loss happened after the LDP label filtering was applied. What is the root cause of this issue? 

Answer options:

A. Labels were not allocated for the P loopbacks.
B. Labels were not allocated for the P and PE physical interfaces.
C. Labels were not allocated for the PE loopbacks.
D. Labels were not allocated for the PE, P and RR physical interfaces.
E. Labels were not allocated for the PE, P and RR loopbacks.
F. Labels were not allocated for the CE loopbacks and physical interfaces.

E