Partin Corporation's cash and cash equivalents consist of cash and marketable securities. Last year the company's cash account increased by $31,000 and its marketable securities account decreased by $22,000. Net cash provided by (used in) operating activities was $108,000. Net cash provided by (used in) financing activities was $(70,000). Based on this information, the net cash provided by (used in) investing activities on the statement of cash flows was: a. ($38.000) b.($29,000) c. $9000 d.$38,000