Maze Company's Cash and Cash Equivalents Consist of Cash and Marketable

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.