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29. Furis Corporation's cash and cash equivalents consist of cash and marketable securities. Last year the company's cash account decreased by $12,000 and its marketable securities account increased by $19,000 Cash provided by operating activities was $18,000. Net cash used in financing activities was $12,000. Based on this information, the net cash flow from investing activities on the statement of cash flows was: A. a net $12,000 decrease. B. a net $1,000 increase. C. a net $6,000 decrease. D. a net $6,000 increase