Assume Fairprice.com began September with 10 units of inventory that cost a total of $150. During September, Fairprice.com purchased and sold goods as follows: Sep. 8 Purchase 30 units @$16 25 units @S32 Purchase 20 units @ $18 30 units@$32 14 Sale 22 27 Sale Under the FIFO inventory costing method and the perpetual inventory system, how much is Fairprice.com's cost of goods sold for the sale on September 14? OA $390 O B. $630 O C. $400 O D. $800 he n lat he he