Which statement about MPLS LDP router ID is true?

Which statement about MPLS LDP router ID is true?
A . If not configured, the operational physical interface is chosen as the router ID even if a loopback is configured.
B . The loopback with the highest IP address is selected as the router I
D . The MPLS LDP router ID must match the IGP router I
F . The force keyword changes the router ID to the specified address without causing any impact.

Answer: B

Explanation:

Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/mp_ldp/configuration/12-4m/mp-ldp-12-4mbook.pdf