A USB pipe is a Â Â Â Â Â Â Â Â Â Â Â Â Â Â channel.

A USB pipe is a Â Â Â Â Â Â Â Â Â Â Â Â Â �

1.	A USB pipe is a Â Â Â Â Â Â Â Â Â Â Â Â Â Â channel.
A.	simplex
B.	half-duplex
C.	full-duplex
D.	both simplex and full-duplex
Answer» D. both simplex and full-duplex