At May 1, 2017, Sunland Company had beginning inventory consisting of 290 units with a unit cost of $7.0. During May, the company purchased inventory as follows: 580 units at $7.0 .860 units at $8.0 The company sold 1440 units during the month for $12.0 per unit. Heineken uses the average cost method. The average cost per unit for May is . O $7.50. O $7.60. O $7.00. O $8.00