Pasquale has the following inventory information. in July1 the beginning Inventory is 20 units costing $ 380. On July 7th purchases 70 units costing $1,400 and on July 22nd purchases 10 units costing 240. The total cost of inventory $2,020. A physical count of merchandise inventory on July 31st reveals that there are 30 units on hand. Using the average-cost method, the value of ending inventory is.

a. $585.

b. $630.

c. $660.

d. $606.