Jackson Company had a net increase in cash from operating activities of $10,000 and a net decrease in cash from financing activities of $2,000. If the beginning and ending cash balances for the company were $4,000 and $11,000, then net cash change from investing activities was:

a an outflow or decrease of $1,000. b an inflow or increase of $2,000. c an inflow or increase of $1,000. d zero.