For a sliding window of size n-1 (n sequence numbers), there can be maximum of how many frames sent but unacknowledged ?

For a sliding window of size n-1 (n sequence numbers), there can be ma

1.	For a sliding window of size n-1 (n sequence numbers), there can be maximum of how many frames sent but unacknowledged ?
A.	n -1
B.	N
C.	n +1
Answer» C. n +1