Which two statements are correct about Layer 2 broadcast frames?()
A、Layer 2 broadcast frames are processed by all devices on the same VLAN
B、Layer 2 broadcast frames are discarded by routers that connect to multiple VLANs
C、Layer 2 broadcast frames are relayed by routers to all connected VLANs
D、Layer 2 broadcast frames are relayed by switches to devices on the same VLAN