Question $2$

Not yet answered Marked out of $1\mathrm{.}00$

In the Selective Repeat Automatic Repeat Request protocol if the receiver window as shown receives frames $2$ and $3$ waiting for frame $1$ what will the receiver do:

a$.$ Deliver the frames $2$ and $3$ to the upper layer

b$.$ Deliver all frames to the upper layer only if all frames in the window are received.

C$.$ Deliver the frames $2$ and $3$ to the upper layer only if received frame $4$ or frame $1$

d$.$ Deliver the frames $2$ and $3$ to the upper layer only if received frame $1.$

e$.$ Deliver the frames $2$ and $3$ to the upper layer only if received frame $4$