Vasudevan Inc. recently reported operating income of $4 million, a tax rate of 40%, and depreciation of $1.2 million. The total of the firm's capital expenditure and the change in NOWC is $0.8 million. How much was its free cash flow (FCF), in millions? A) 2.6 B) 2.7 C) 2.9 D) 2.8 E) 3.1