Which of the following is true of net working capital?

When current assets of a firm exceed its current liabilities, a firm is said to hav positive net working capital.

When current assets of a firm exceed its current liabilities, a firm is said to ha negative net working capital.

When current assets of a firm are less than its total assets, a firm is said to ha positive net working capital.

When current assets of a firm exceed its total assets, the firm is said to have negative net working capital.