Highway Company had a $20,000 beginning inventory and a $26,000 ending inventory. Net sales were $186,000; purchases, $89,000; purchase returns and allowances, $8,000 and freight-in, $3,000. Cost of goods sold for the period is $78,000. What is Highway's rate of inventory turnover? O A. 3.4 times B. 3.0 times O C. 3.9 times OD. 7.2 times