A firm wishes to maintain an sustainable growth rate of $10$ percent and a dividend payout ratio of $56$ percent. The ratio of total assets to sales is constant at $1\mathrm{.}1,$ and the profit margin is $9\mathrm{.}6$ percent. If the firm also wishes to maintain a constant debt$-$equity ratio, what must it be$?$

Multiple Choice

$5\mathrm{.}86$

$1\mathrm{.}37$

$6\mathrm{.}86$

$4\mathrm{.}86$

$3\mathrm{.}86$