The following is the information for ABC Corporation for the inventory transactions. The company sold 70 units on Jan 31 at $30/unit Units Unit Cost Date 1-Jan 20 $10 25-Jan 40 $11 26-Jan 40 $12 28-Jan 50 $13 a. (6 Marks) Calculate the cost of goods sold on January 31, 2020, using the FIFO method b. (6 Marks) Calculate the ending inventory using the FIFO method c. (3 Marks) Record journal entry for purchase on Jan 28 assuming that it was a credit purchase d. (3 Marks) Record journal entry for sale on Jan 31 assuming that it was a credit sale