Which BGP router configuration command will enable an ISP edge router to advertise a default route to its BGP neighbor even if a default route is not present in its BGP table?

A.
router(config-router)#neighbor {ip-address} default-originate

B.
router(config-router)#network 0.0.0.0

C.
router(config-router)#network 0.0.0.0 mask 0.0.0.0

D.
router(config-router)#default network 0.0.0.0