please do it correctly will upvote

On December 1, Concord Electronics Ltd. has three DVD players left in stock. All are identical, all are priced to sell at $180. One of the three DVD players left in stock, with serial #1012, was purchased on June 1 at a cost of $90. Another, with serial #1045, was purchased on November 1 for $86. The last player, serial #1056, was purchased on November 30 for $70. (a) Calculate the cost of goods sold using the FIFO periodic inventory method assuming that two of the three players were sold by the end of December, Concord Electronics' year-end. Cost of goods sold $ eTextbook and Media Attempts: 0 of 5 used (b). If Concord Electronics used the specific identification method instead of the FIFO method, how might it alter its earnings by "selectively choosing" which particular players to sell to the two customers? What would Concord's cost of goods sold be if the company wished to minimize earnings? Maximize earnings? Cost of goods sold would be $ if it wished to minimise the earnings. Cost of goods sold would be $ if it wished to maximise the earnings