An aqueous solution of $2\mathrm{.}45\%$ by weight H$2$SO$4$ has a specific gravity of $1\mathrm{.}011.$ The composition expressed in normality is

$0\mathrm{.}25$

$0\mathrm{.}2528$

$0\mathrm{.}5$

$0\mathrm{.}5055$