The debt$$equity ratio of a company with total assets of $$4$ million, total debt of $$1$ million, and total equity of $$3$ million is Blank$\_\_\_\_\_\_.$

Multiple choice question.

$0\mathrm{.}75$

$0\mathrm{.}33$

$0\mathrm{.}25$

$0\mathrm{.}14$