Duffert Industries had total assets of $$5,000,000$ and sales of $$10,000,000$ last year $($December $31,2023).$ The company had BEP $($basic earning power$)$ ratio of $15\%,$ profit margin of $5\%$ and tax rate of $20\%.$ The company did not have any preferred stocks. What was the company's TTE $($times$-$interest$-$eamed$)$ ratio?

a$.2\mathrm{.}50$

b$.3\mathrm{.}75$

c$.4\mathrm{.}75$

d$.5\mathrm{.}25$

e$.6\mathrm{.}00$