Match the following:
\(\begin{array}{|c|c|c|}
\hline & \text { List I } & \text { List II } \\
\hline \text { (A) } & \Delta U=W_{\mathrm{ad}} & \text { I. Isothermal reversible expansion } \\
\hline \text { (B) } & \Delta U=q-W & \text { II. Wall is adiabatic } \\
\hline(\mathrm{C}) & \Delta U=-q & \text { III. Thermally conducting walls } \\
\hline \text { (D) } & \Delta U=0 & \text { IV. Isolated system } \\
\hline & & \text { V. Closed system } \\
\hline
\end{array}\)
The correct answer is

1. A \(\begin{array}{cc} A & B & C & D \\ V & I & II & III \end{array}\)
2. B \(\begin{array}{cc} A & B & C & D \\ I & III & II & IV \end{array}\)
3. C \(\begin{array}{cc} A & B & C & D \\ II & V & III & I \end{array}\)
4. D \(\begin{array}{cc} A & B & C & D \\ II & V & I & III \end{array}\)