Question-on PPPoE ?

Question-on PPPoE ? (Choose Two)
A. A PADI (PPPoE Active Discovery Initiation) broadcast signal is sent by the host to the remote devices
B. A PADR (PPPoE Active Discovery Request) unicast signal is sent to confirm the remote device. (Confirmation done on PADS)
C. A PADR (PPPoE Active Discovery Request) broadcast signal is sent by the host to the remote device.
D. A PADO (PPPoE Active Discovery Offer) signal is sent by the remote device back to the host.
E. A PADT (PPPoE Active Discovery Terminate) signal