Dumbledore Company recently reported $$30$ million of sales, $$11$ million of operating costs other than depreciation, and $$1\mathrm{.}5$ million of depreciation. It had $9\mathrm{.}50$ million of bonds outstanding that carry a $5\mathrm{.}0\%$ interest rate, and its federal$-$plus$-$state income tax rate was $25\%.$ How much was Company's net income, or NI$,$ in millions?

a$.12\mathrm{.}5$

b$.17\mathrm{.}03$

c$.13\mathrm{.}48$

d$.12\mathrm{.}77$

e$.17\mathrm{.}50$