Which of the Following Is True About Net Working Capital

Which of the following is true about net working capital?

A) Projects in which a firm expands its operations and sales will generally not lead to changes in net working capital.
B) Changes in net working capital account for differences between accounting sales and costs and actual cash receipts and payments.
C) Net working capital is typically an expense at the beginning of a project and an equal revenue source at the end of a project; thus, there is no impact on project NPV.
D) Dollar changes in the cash account are generally equal to changes in net working capital.
E) Net working capital is not considered an investment of the firm.