The term 'duplex' refers to the ability of the data receiving stations to echo back a confirming message to the sender. In full duplex data transmission, both the sender and the receiver

[A].	cannot talk at once
[B].	can receive and send data simultaneously
[C].	can send or receive data one at a time
[D].	can do one way data transmission only
[E].	None of the above

Answer: Option B

Explanation:

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