Taylor Company uses a periodic inventory system. The following is partial information from its income statements for 2019 and 2020:

2019 2020 Beginning inventory $ (b) $ (d) Sales 220,000 Purchases 118,000 140,000 Purchase returns 2,000 3,000 Ending inventory 48,000 74,000 Gross profit 77,000 Cost of goods sold 106.000 Expenses 65,000 62,000 Net income 15,000 Required: Next Level Fill in the blanks lettered a through f. (Hint: It probably is easiest to work through the blanks according to the sequential letters.)