If You Have an Decrease in Accounts Recieveable of $10,000;

If you have an decrease in accounts recieveable of $10,000; an increase in inventory of $15,000; and an increase in accounts payable of $4,000,what is the change in net working capital?

A) $ 9,000.00
B) $ (1,000.00)
C) $ 1,000.00
D) $ (19,000.00)