Which of the Following Statements Is NOT True

Which of the following statements is NOT true?

A) Gross working capital refers to the funds invested in a company's current liabilities.
B) Net working capital (NWC) refers to the difference between current assets and current liabilities.
C) Working capital efficiency refers to the length of time between when a working capital asset is acquired and when it is converted into cash.
D) Working capital management involves making decisions regarding the use and sources of current assets.