Why is the marking with the X incorrect?

Clear Water Co. reports the following balance sheet accounts as of December 31. Buildings Accounts receivable Land Merchandise inventory Accounts payable Cash Notes payable (due in 7 years) Office supplies Common stock Retained earnings Wages payable $ 42,500 2,700 18,000 8,400 5,700 9,400 44,000 2,400 17,000 13,000 3,700 Required: Prepare a classified balance sheet. Clear Water Co. Balance Sheet December 31 Assets $ Current assets Accounts receivable Merchandise inventory Cash Office supplies >> O 2,700 8,400 9,400 2,400 $ 22,900 Total current assets Plant assets Buildings 42,500 18,000 Land Total plant assets Total assets 60,500 83,400 $ Liabilities $ Current liabilities Accounts payable Notes payable Wages payable Total current liabilities Long-term liabilities 5,700 44,000 3,700 $ 53,400 Total liabilities 53,400 Equity Retained earnings Common stock 13,000 17,000 Total equity Total liabilities and equity 30,000 83,400 $