Match the following $\text{ⅵ}$ commands in Unix :
$\begin{array}{clcl} & \textbf{List-I} & & \textbf{List-II} \\
\text{a.} & \text{:w} & \text{i.} & \text{saves the file and quits editing mode} \\
\text{b.} & \text{:x} & \text{ii.}
& \text{escapes unix shell} \\
\text{c.} & \text{:q} &\text{iii.} & \text{saves file and remains in editing mode}\\ \text{d.} & \text{:sh} & \text{iv.} & \text{quits editing mode and no change are}\\&&& \text{saved to the file} \\ \end{array}$
$\textbf{Codes :}$
- $\text{a-ii, b-iii, c-i, d-iv}$
- $\text{a-iv, b-iii, c-ii, d-i}$
- $\text{a-iii, b-iv, c-i, d-ii}$
- $\text{a-iii, b-i, c-iv, d-ii}$