Use the following information to answer questions 15-17 Tween Distribution markets CDs of the performing artist Little Sister. At the beginning of October, Tween had in beginning inventory 1000 Sister's CDs with a unit cost of $5. During October Tween made the following purchases of Sister's CDs: Oct. 3 4,000@ $6 Oct. 19 2,000@ $8 Oct. 9 3,000@ $7 Oct. 25 2,500@ $9 During October 9,500 units were sold. 15. Determine Cost of Goods Sold using the weighted average assumption. a. $71,500 b. $67,260 c. $62,000 d. $67,500 16. Determine Cost of Goods Sold using the First In First Out (FIFO) assumption. a. $71,500 b. $67,260 c. $62,000 d. $67,500 17. Determine Cost of Goods Sold using the e In First Out (EIFO) assumption LASt LIFO a. $71,500 b. $67,260 c. $62,000 d. $67,500