please answer with correct and detailed calculations and explanations. make sure supporting statements are also provided for each step and calculation.

The following balance sheet information is provided for Northrup Company: Assets Cash $ 4.000 Accounts receivable 10,150 Inventory 14,000 Prepaid expenses 800 Plant and equipment. net of depreciation 18,700 Land 12.600 Total assets $60.250 Liabilities and Stockholders' Equity Accounts payable $ 2,310 Salaries payable 9.030 Bonds payable (due in 2020) 8.000 Common stock. no par 20.910 Retained earnings 20.000 Total liabilities and stockholders' equity $60.250 What is the amount of the company's working capital? $2,810 $8,810 $17,610 $25,840