A Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is a full duplex connection between a device driver and a user level process.

A Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â�

1.	A Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is a full duplex connection between a device driver and a user level process.
A.	bus
B.	i/o operation
C.	stream
D.	flow
Answer» D. flow