ATM carries IP and PPP information with ATM cells. What ATM adaptation Layer is used when an ATMcell carries IP packets and PPP frames？（）

A.Service Ethertype
B.ISL
C.PseudoLAN TAG
D.802.1q VLAN TAG
E.Control Word
F.Tunnel Label

A.A neighbor that has met the feasibility condition
B.A neighbor that has met the feasibility condition and has the lowest cost path towards the destination
C.Any neighbor that is in the path towards the destination.
D.Any neighbor that is in the path towards the destination and whose reported distance equals thefeasible distance