Using OSPF as the CE-PE routing protocol, when and which router will set the down bit?

A.
The PE router will set the down bit when redistributing routes from MP-BGP into OSPF.

B.
The PE router will set the down bit when redistributing routes from OSPF into MP-BGP.

C.
The CE router will set the down bit when propagating the OSPF route to the PE router.

D.
The PE router will set the down bit when propagating the OSPF route to the CE router.

E.
The P router will set the down bit when propagating the route to another P router.

F.
The PE router will set the down bit when propagating the route to another PE router over MPBGP.