please help

Pilgrims Company reports the following for the month of October: Units Unit Cost Total Cost October 1 Inventory 500 $5 $2,500 This represents BEGINNING Inventory October 12 Purchase 300 $6 $1,800 October 19 Purchase 200 $7 $1,400 October 31 Inventory 300 This represents ENDING Inventory Compute the cost of the ending inventory and cost of goods sold under the a) FIFO method b) LIFO method c) Average Cost