A company that uses a perpetual merchandise inventory system made the following cash purchases and sales: (a) On Jan. 9 Purchased 50 units at $10 per unit. (b) On Feb. 5 Purchased 60 units at $12 per unit. c) On Mar. 27 Sold 55 units for cash at $16 per unit. If the company uses Weighted Average System for Inventory costing, then what was the Cost of Goods Sold for the Mar. 27 transaction Select one: O a $560 O b. $650 Oc. $660 O d. none of the choices is correct O e. $610