HH Sdn$.$ Bhd$.\text{'}$s total debt ratio is $0\mathrm{.}4.$ What is its debt$-$to$-$equity ratio?

A$.0\mathrm{.}200$

B$.0\mathrm{.}333$

C$.0\mathrm{.}600$

D$\mathrm{.}0\mathrm{.}667$