During 20B, Bogus Corporation reported net income of $10,000. During the year, depreciation expense was $5,000, accounts payable increased $2,000 and accounts receivable increased $4,000. Therefore, based upon this information, the "cash inflow from operating activities" was
A) $21,000.
B) $20,000.
C) $16,000.
D) $13,000.
E) None of the above is correct.