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)\;850\; ml \\ (b)\;960\; ml\\ (c)\;1013.3\;ml\\ (d)\;1130.3\;ml \end{array} $