A company just starting business made the following four inventory purchases in June: June 1 150 units 2,600 June 10 200 units 3,900 June 15 200 units 4,200 June 28 150 units 3,300 14,000 A physical count of merchandise inventory on June 30 reveals that there are 100 units on hand. The inventory method which results in the highest gross profit for June is not determinable. the FIFO method. the average-cost method. the specific identification method