A gas occupies one litre under atmospheric pressure. What will be the volume of the same amount of gas under 750 mm of Hg at the same temperature?

Question

$\begin{array}{1 1} (a)\; 1013.3\; ml \\ (b)\; 101.33\; ml \\ (c)\; 1 \;ml \\ (d)\; 1013.3\; litre \end{array} $