Assume that the following jobs are to be executed on a single processor system$$\begin{array}{|c|c|} \hline \textbf{Job Id} & \textbf{CPU Burst Time} \\\hline \text{p} & 4 \\\hline \text{q} & 1 \\\hline \text{r} & 8 \\\hline \text{s} & 1 \\\hline \text{t} & 2 \\\hline \end{array}$$The jobs are assumed to have arrived at time $0^+$ and in the order $p,q,r,s,t$. Calculate the departure time (completion time) for job $p$ if scheduling is round robin with time slice $1$
- $4$
- $10$
- $11$
- $12$
- None of the above