The ABC Company had the following inventory record for the month of January:

The ABC Company had the following inventory record for the month of
January:
# of Unit
Date Description Items Price Item
1/1 Beginning
 inventory 5 $20 Z1–Z5
1/5 Sale 2 Z2, Z5
1/11 Purchase 9 12 Z6—Z14
1/28 Sale 7 Z1, Z3, Z6, Z7, Z8, Z9, Z14
Required:
Assuming a perpetual inventory system is used, determine the cost of
goods sold and the ending inventory
1. FIFO
2. LIFO
3. Weighted average
4. Specific identification