Accounts receivable arising from sales to customers amounted to $80,000 and $70,000 at the beginning and end of the year, respectively. Income reported on the income statement for the year was $240,000. Exclusive of the effect of other adjustments, the cash flows from operating activities to be reported on the statement of cash flows is _____.
a) $240,000
b) $250,000
c) $310,000
d) $230,000