Question 3 Take a look at the information provided below, concerning the sales and purchases of a trading company that took place in January 2016. 2/1Purchases 2,000 units at 10 12/1Sales 1,500 units at 15 21/1Purchases 400 units at 11 26/1Sales 600 units at 16.50 30/1Sales 200 units at 17.50 Calculate: a. The profit over January 2018 using LIFO b. C. The inventory at the end of January 2018 using FIFO The profit over January 2018 using WAC. Explain Impairment Test d