Maze Company's cash and cash equivalents consist of cash and marketable securities. Last year the company's cash account increased by $24,000 and its marketable securities account decreased by $16,000. Cash provided by operating activities was $40,000. Net cash used in financing activities was $39,000. Based on this information, the net cash flow from investing activities on the statement of cash flows was: A) a net $9,000 increase. B) a net $23,000 increase. C) a net $39,000 increase. D) a net $7,000 increase.