plz tell which option is correct

Question 4 (1 point) Which of the following statements regarding inventory systems is correct? In a perpetual inventory system, cost of goods sold is recorded at the time of each sale during the accounting period. In a perpetual inventory system, the inventory account is not changed for each purchase during the accounting period. In a periodic inventory system, the inventory account is increased for each purchase during the accounting period. In a periodic inventory system, cost of goods sold is developed from a comparison of beginning inventory and ending inventory only