what purpose?

The bsr-border router PIM interface configuration command is used for what purpose?

A.
To enable the router as the candidate RP

B.
To enable the router as the candidate BSR

C.
To enable the router as the BSR mapping agent

D.
To set up an administrative boundary to prevent BSR messages from being sent out through an
interface

E.
To define a boundary to restrict the RP discovery and announcement messages from being
sent outside the PIM-SM domain