At May 1, 2020, Swifty Company had beginning inventory consisting of 200 units with a unit cost of $8.00. During May, the company purchased inventory as follows: 880 units at $8.00 520 units at $5.20 The company sold 900 units during the month for $14 per unit. Swifty uses the average cost method. The average cost per unit for May is $8.000 $5.200. O $11.300. O $7.090