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 are discarded by routers that connect to multiple VLANs
• C、Layer 2 broadcast frames are relayerd by routers to all connected VLANs
• D、Layer 2 broadcast frames are relayed by switches to devices on the same VLAN