Explanation:

- Current assets refer to assets that are expected to be converted into cash, sold, or consumed within one year or a business's operating cycle, whichever is longer.

- Option 1: Cash

- Cash is a component of current assets.

- Option 2: Assets

- Assets are resources owned by a company, but "assets" alone isn't specific to current assets.

- Option 3:Net Working capital

-  Net Working capital is calculated as current assets minus current liabilities, but isn't another name for current assets.

- Option 4: Gross working capital

- Gross Working capital is total of all assets that are convertible to cash within a year or less