Aunt Didi Corp had the following Inventory. Aunt Didi Corp makes one sale of 200 units on December 23rd and uses the FIFO method to account for inventory. What is the Cost of Goods Sold in December? What is the Ending Inventory in December? Date Transaction Units Cost Total Cost Jan 1 Beg. Inventory 100 $15 $1,500 Jan 10 Purchase 150 $25 $3,750 Cost of Good Sold $4,000 : Ending Inventory $1,250 OA. Cost of Good Sold $4,500: Ending Inventory $750 B. Cost of Good Sold $1,500 : Ending Inventory $3,750 OC. D. Cost of Good Sold $4,200 : Ending Inventory $1,050