单选题 The selected data pertain to a company at 31 December 2003 as the following: Quick Assets ＄208,000 Quick ratio 2.6 to 1 Current ratio 3.5 to 1 Net sales for 2003 ＄1,800,000 Cost of good sold for 2003 ＄990,000 Average total assets for 2003 ＄1,200,000 The company's inventory balance at 31 December 2003 is ______. (a)＄72,000. (b)＄186,990. (c)＄231,111. (d)＄68,000.