Fama's Llamas has a weighted average cost of capital of $10$ percent. The company's cost of equity is $15$ percent, and its pretax cost of debt is $7\mathrm{.}5$ percent. The tax rate is $31$ percent. What is the company's target debt$-$equity ratio?

Multiple Choice

$1\mathrm{.}0881$

$0\mathrm{.}9845$

$2$

$1\mathrm{.}0363$

$10777$