44.. Keen Company's accounting records indicated the following information: Inventory, 1/1/20 $ 1,800,000 Purchases during 2020 9,000,000 Sales during 2020 I 11,400,000 A physical inventory taken on December 31, 2020, resulted in an ending inventory of $2,100,000. Keen's gross profit on sales has remained constant at 25% in recent years. Keen suspects some inventory may have been taken by a new employee. At December 31, 2020, what is the estimated cost of missing inventory? a. $150,000. b. $450,000. C. $600,000 d. $750,000