A firm wishes to maintain an sustainable growth rate of $8$ percent and a dividend

payout ratio of $68$ percent. The ratio of total assets to sales is constant at $0\mathrm{.}9,$ 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$?$

$3\mathrm{.}17$

$6\mathrm{.}17$

$4\mathrm{.}02$

$1\mathrm{.}17$

$5\mathrm{.}02$A