P$5)$ In $\backslash ($ S R $\backslash )$ protocol, suppose frames through $0$ to $3$ have be $\backslash (100\backslash \%\backslash )$ utilization, imagine that $0$ times out, $4($a new frame$)$ is transmitted, $1$ transmitted. Now, out and $5($another new frame$)$ is transmitted.

At this point, what will be the outstanding packets in sender$\text{'}$s window?

$-341526$

$-304125$

$-0123456$

$-654321$