Use the following information to answer questions 2 and 3 Lumley Pty Ltd has a perpetual inventory system and sells only one product. 80 items of inventory/stock costing $30 each were in the store at the beginning of June. 20 more items were purchased for $50 each on the 12thJune. 90 items were sold for $100 each on the 28thjune. Assuming a WEIGHTED AVERAGE system is used for inventory records, what was the cost of goods sold for the 28th June sale? Select one: " a. $4,500 " b. $2,700 " c. $3,060 ' d. $1,000 ' e. $9,000 Assuming a FIFO system is used for inventory records, what was the cost of goods sold for the 28th June sale? Select one: O a. $3,060 O b. $2,400 O c. $3, 100 O d. $9,000 O e. $2,900