What is the default maximum transmission unit on the Cisco router ATM interface？（）

A.AFI is 2， SAFI is 96
B.AFI is 1， SAFI is 98
C.AFI is 1， SAFI is 64
D.AFI is 1， SAFI is 128
E.AFI is 2， SAFI is 128
F.AFI is 2， SAFI is 64

A.L2VPN Pseudowire Switching allows the user to extend L2VPN Pseudowires across an inter-AS boundary
B.L2VPN Pseudowire Switching allows the user to extend L2VPN Pseudowires across two separate MPLS networks
C.Quality of service is not supported per Pseudowire
D.L2VPN Pseudowire Switching connects two or more contiguous Pseudowires segments to from an end-to-end multihop Pseudowire
E.The Cisco MPLS Traffic Engineering tunnel selection is not supported

A.local preference
B.weight
C.origin
D.Network Layer Reachability Information
E.multiple exit discriminator