Vasudevan Inc. recently reported operating income of $$3\mathrm{.}40$ million, depreciation of $$0\mathrm{.}95$ million, and had a tax rate of $25\%.$ The firm's expenditures on fixed assets and net operating working capital totaled $$0\mathrm{.}60$ million. How much was its free cash flow, in millions?

a$.$ $$2\mathrm{.}900$

b$.$ $$4\mathrm{.}350$

c$.$ $$3\mathrm{.}500$

d$.$ $$3\mathrm{.}750$

e$.$ $$4\mathrm{.}100$