Within the Context of Working Capital Management

Within the context of working capital management:

A) as the firm increases its investment in working capital,there is a corresponding increase in its profits.
B) current liabilities provide a flexible means of financing the firm's fluctuating needs for assets.
C) the use of current liabilities or short-term debt as opposed to long-term debt subjects the firm to less risk of illiquidity.
D) all of the above.