In a Periodic Inventory System,the Cost of Goods Sold Is

In a periodic inventory system,the cost of goods sold is determined as follows:

A) Year-end inventory,plus purchases during the year,less the inventory at the beginning of the year.
B) Net sales,less the balance in the Gross Profit account.
C) Cost of goods available for sale during the year,less the ending inventory.
D) A physical count is made of all items sold throughout the year,and a cost flow assumption is applied at year-end.