Roadside, Inc. had the following balances and transactions during 2018: Beginning Merchandise Inventory 40 units at $75 March 10 Sold 38 units June 10 Purchased 80 units at $85 October 30 Sold 74 units What is the amount of the company's ending Merchandise Inventory, as disclosed in the December 31, 2018 balance shoot, using the periodic LIFO Inventory costing method? O A. $680 O B. $600 OC. $450 OD. $510