The company's OCF is $6000. During the year, the company paid $4000 for a new machine. Thus the book value of machine increases from $3000 to $7000 (hint: This BV is the gross machine, not net machine). The company has a depreciation expense of $1000 for the year. The account receivables decrease by $500. What is the cash flow from assets (CFFA)? Select one: a. 3000 b. 2500 c. 3500 d. 2000