The correct treatment for changes in working capital $($net current assets$)$ is:

A$)$ Increases in working capital are treated as cash outflows and are deducted for tax purposes over the life of the project.

B$)$ Decreases in working capital are treated as cash outflows and are deducted for tax purposes over the life of the project.

C$)$ Increases in working capital are treated as cash outflows and do not affect tax.

D$)$ Decreases in working capital are treated as cash outflows and do not affect tax.

E$)$ Working capital is not relevant for cash flow purposes or for taxation