Which two statements are true about high availability on Junos devices? (Choose two.)
A. BFD is faster at detecting failures than default GRE or OSPF timers.
B. BFD is slower at detecting failures than default GRE or OSPF timers.
C. NSR is dependent on helper routers to assist the routing platform in restoring routing protocol information.
D. NSR is independent on helper routers to assist the routing platform in restoring routing protocol information.