Which statement is true about BPDU-Protection on HP Comware switches?

A.
BPDU-Protection is enabled on the root switches globally and will detect rogue switches on
downlink ports.

B.
BPDU-Protection is enabled on the root switches, downlink ports and will detect rogue switches
on those ports.

C.
BPDU-Protection is enabled globally and will detect rogue switches on edge ports.

D.
BPDU-Protection is enabled per port and will detect rogue switches on those ports.