Question: In stop - and - wait ARQ, if the receiver sent an acknowledgment number 0 , means that the receiver. q , a . didn't

In stop-and-wait ARQ, if the receiver sent an acknowledgment number 0, means that the receiver. q,
a. didn't receive any frame yet and waiting to receive frame 0
b. received frame 1 successfully
c. didn't receive any frame
d. received frame 0 successfully
e. None of the choices
In stop-and-wait ARQ, if the receiver sent an acknowledgment number 0,

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