For the year ended December 31, 2008, a corporation had cash flow from operating activities of -$10,000, cash flow from investing activities of $4,000, and cash flow from financing activities of $9,000. What is the net cash flow during the year ?

a) $ 23,000

b) $ -23,000

c) $ 25,000

d) $ 3,000

e) None of the above