(FIFO) The cost of ending inventory at December 31, 2020 is: O A. $11,000. O B. $88,000. O C. $80,000. O D. $10,000.

Use the following information to answers questions 10 to 16: Whitby Inc. is a wholesaler that uses a perpetual inventory system. The company's accounting records provided the following transactions for Product B during the fiscal year ended on December 31, 2020. Sale Price Unit Cost $ 9 Date March 5 June 15 September 19 November 20 Transactions Purchase Sale Purchase Sale Units 19,000 10,000 8,000 16,000 $27 11 30