The following information is provided by Charest Co. for the month of June: DateUnitsUnit Cost June 1Beginning inventory300$17 18Purchase55027 25Purchase48028 Total1,330$72 Charest sold 660 units in June. Calculate the cost of goods sold and the cost of ending inventory for the month of June using the weighted average cost method. a. Cost of goods sold is $7,542, and ending inventory is $27,358. b. Cost of goods sold is $7,070, and ending inventory is $27,916. c. Cost of goods sold is $17,914, and ending inventory is $15,075. d. Cost of goods sold is $16,500, and ending inventory is $16,750.